diff --git a/Numscript.g4 b/Numscript.g4
index a055786..ef352a8 100644
--- a/Numscript.g4
+++ b/Numscript.g4
@@ -85,6 +85,7 @@ source:
 	| valueExpr							# srcAccount
 	| LBRACE allotmentClauseSrc+ RBRACE	# srcAllotment
 	| LBRACE source* RBRACE				# srcInorder
+	| 'oneof' LBRACE source+ RBRACE		# srcOneof
 	| MAX cap = valueExpr FROM source	# srcCapped;
 allotmentClauseSrc: allotment FROM source;
 
@@ -94,9 +95,10 @@ keptOrDestination:
 destinationInOrderClause: MAX valueExpr keptOrDestination;
 
 destination:
-	valueExpr																# destAccount
-	| LBRACE allotmentClauseDest+ RBRACE									# destAllotment
-	| LBRACE destinationInOrderClause* REMAINING keptOrDestination RBRACE	# destInorder;
+	valueExpr																		# destAccount
+	| LBRACE allotmentClauseDest+ RBRACE											# destAllotment
+	| LBRACE destinationInOrderClause* REMAINING keptOrDestination RBRACE			# destInorder
+	| 'oneof' LBRACE destinationInOrderClause* REMAINING keptOrDestination RBRACE	# destOneof;
 allotmentClauseDest: allotment keptOrDestination;
 
 sentValue: valueExpr # sentLiteral | sentAllLit # sentAll;
diff --git a/internal/analysis/check.go b/internal/analysis/check.go
index 2bb3e24..43db775 100644
--- a/internal/analysis/check.go
+++ b/internal/analysis/check.go
@@ -503,6 +503,11 @@ func (res *CheckResult) checkSource(source parser.Source) {
 			res.checkSource(source)
 		}
 
+	case *parser.SourceOneof:
+		for _, source := range source.Sources {
+			res.checkSource(source)
+		}
+
 	case *parser.SourceCapped:
 		onExit := res.enterCappedSource()
 
@@ -571,6 +576,13 @@ func (res *CheckResult) checkDestination(destination parser.Destination) {
 		}
 		res.checkKeptOrDestination(destination.Remaining)
 
+	case *parser.DestinationOneof:
+		for _, clause := range destination.Clauses {
+			res.checkExpression(clause.Cap, TypeMonetary)
+			res.checkKeptOrDestination(clause.To)
+		}
+		res.checkKeptOrDestination(destination.Remaining)
+
 	case *parser.DestinationAllotment:
 		var remainingAllotment *parser.RemainingAllotment
 		var variableLiterals []parser.Variable
diff --git a/internal/analysis/check_test.go b/internal/analysis/check_test.go
index 7c08c08..b6b0261 100644
--- a/internal/analysis/check_test.go
+++ b/internal/analysis/check_test.go
@@ -197,6 +197,31 @@ func TestUnboundVarInSource(t *testing.T) {
 	)
 }
 
+func TestUnboundVarInSourceOneof(t *testing.T) {
+	t.Parallel()
+
+	input := `send [C 1] (
+  source = oneof { $unbound_var }
+  destination = @dest
+)`
+
+	program := parser.Parse(input).Value
+
+	diagnostics := analysis.CheckProgram(program).Diagnostics
+	require.Len(t, diagnostics, 1)
+
+	assert.Equal(t,
+		[]analysis.Diagnostic{
+			{
+				Range: parser.RangeOfIndexed(input, "$unbound_var", 0),
+				Kind:  &analysis.UnboundVariable{Name: "unbound_var"},
+			},
+		},
+		diagnostics,
+	)
+
+}
+
 func TestUnboundVarInDest(t *testing.T) {
 	t.Parallel()
 
diff --git a/internal/cmd/run.go b/internal/cmd/run.go
index d7ba612..b645588 100644
--- a/internal/cmd/run.go
+++ b/internal/cmd/run.go
@@ -27,6 +27,7 @@ var runStdinFlag bool
 var runOutFormatOpt string
 
 var overdraftFeatureFlag bool
+var oneOfFeatureFlag bool
 
 type inputOpts struct {
 	Script    string                       `json:"script"`
@@ -121,6 +122,9 @@ func run(path string) {
 	if overdraftFeatureFlag {
 		featureFlags[interpreter.ExperimentalOverdraftFunctionFeatureFlag] = struct{}{}
 	}
+	if oneOfFeatureFlag {
+		featureFlags[interpreter.ExperimentalOneofFeatureFlag] = struct{}{}
+	}
 
 	result, err := interpreter.RunProgram(context.Background(), parseResult.Value, opt.Variables, interpreter.StaticStore{
 		Balances: opt.Balances,
@@ -201,6 +205,7 @@ func getRunCmd() *cobra.Command {
 
 	// Feature flag
 	cmd.Flags().BoolVar(&overdraftFeatureFlag, interpreter.ExperimentalOverdraftFunctionFeatureFlag, false, "feature flag to enable the overdraft() function")
+	cmd.Flags().BoolVar(&oneOfFeatureFlag, interpreter.ExperimentalOneofFeatureFlag, false, "feature flag to enable the oneof combinator")
 
 	// Output options
 	cmd.Flags().StringVar(&runOutFormatOpt, "output-format", OutputFormatPretty, "Set the output format. Available options: pretty, json.")
diff --git a/internal/interpreter/batch_balances_query.go b/internal/interpreter/batch_balances_query.go
index 074fd0d..b725d2c 100644
--- a/internal/interpreter/batch_balances_query.go
+++ b/internal/interpreter/batch_balances_query.go
@@ -128,6 +128,15 @@ func (st *programState) findBalancesQueries(source parser.Source) InterpreterErr
 		}
 		return nil
 
+	case *parser.SourceOneof:
+		for _, subSource := range source.Sources {
+			err := st.findBalancesQueries(subSource)
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+
 	case *parser.SourceCapped:
 		// TODO can this be optimized in some cases?
 		return st.findBalancesQueries(source.From)
diff --git a/internal/interpreter/interpreter.go b/internal/interpreter/interpreter.go
index 71a8168..3e8c624 100644
--- a/internal/interpreter/interpreter.go
+++ b/internal/interpreter/interpreter.go
@@ -179,7 +179,10 @@ func (s *programState) parseVars(varDeclrs []parser.VarDeclaration, rawVars map[
 
 type FeatureFlag = string
 
-const ExperimentalOverdraftFunctionFeatureFlag FeatureFlag = "experimental-overdraft-function"
+const (
+	ExperimentalOverdraftFunctionFeatureFlag FeatureFlag = "experimental-overdraft-function"
+	ExperimentalOneofFeatureFlag             FeatureFlag = "experimental-oneof"
+)
 
 func RunProgram(
 	ctx context.Context,
@@ -198,10 +201,7 @@ func RunProgram(
 
 		CurrentBalanceQuery: BalanceQuery{},
 		ctx:                 ctx,
-	}
-
-	if _, ok := featureFlags[ExperimentalOverdraftFunctionFeatureFlag]; ok {
-		st.OverdraftFunctionFeatureFlag = true
+		FeatureFlags:        featureFlags,
 	}
 
 	err := st.parseVars(program.Vars, vars)
@@ -261,7 +261,7 @@ type programState struct {
 
 	CurrentBalanceQuery BalanceQuery
 
-	OverdraftFunctionFeatureFlag bool
+	FeatureFlags map[string]struct{}
 }
 
 func (st *programState) pushSender(name string, monetary *big.Int) {
@@ -476,6 +476,16 @@ func (s *programState) sendAll(source parser.Source) (*big.Int, InterpreterError
 		}
 		return totalSent, nil
 
+	case *parser.SourceOneof:
+		err := s.checkFeatureFlag(ExperimentalOneofFeatureFlag)
+		if err != nil {
+			return nil, err
+		}
+
+		// we can safely access the first one because empty oneof is parsing err
+		first := source.Sources[0]
+		return s.sendAll(first)
+
 	case *parser.SourceCapped:
 		monetary, err := evaluateExprAs(s, source.Cap, expectMonetaryOfAsset(s.CurrentAsset))
 		if err != nil {
@@ -567,6 +577,36 @@ func (s *programState) trySendingUpTo(source parser.Source, amount *big.Int) (*b
 		}
 		return new(big.Int).Sub(amount, totalLeft), nil
 
+	case *parser.SourceOneof:
+		err := s.checkFeatureFlag(ExperimentalOneofFeatureFlag)
+		if err != nil {
+			return nil, err
+		}
+
+		// empty oneof is parsing err
+		leadingSources := source.Sources[0 : len(source.Sources)-1]
+
+		for _, source := range leadingSources {
+
+			// do not move this line below (as .trySendingUpTo() will mutate senders' length)
+			backtrackingIndex := len(s.Senders)
+
+			sentAmt, err := s.trySendingUpTo(source, amount)
+			if err != nil {
+				return nil, err
+			}
+
+			// if this branch managed to sent all the required amount, return now
+			if sentAmt.Cmp(amount) == 0 {
+				return amount, nil
+			}
+
+			// else, backtrack to remove this branch's sendings
+			s.Senders = s.Senders[0:backtrackingIndex]
+		}
+
+		return s.trySendingUpTo(source.Sources[len(source.Sources)-1], amount)
+
 	case *parser.SourceAllotment:
 		var items []parser.AllotmentValue
 		for _, i := range source.Items {
@@ -675,6 +715,27 @@ func (s *programState) receiveFrom(destination parser.Destination, amount *big.I
 		// passing "remainingAmount" directly breaks the code
 		return handler(destination.Remaining, remainingAmountCopy)
 
+	case *parser.DestinationOneof:
+		err := s.checkFeatureFlag(ExperimentalOneofFeatureFlag)
+		if err != nil {
+			return err
+		}
+		for _, destinationClause := range destination.Clauses {
+			cap, err := evaluateExprAs(s, destinationClause.Cap, expectMonetaryOfAsset(s.CurrentAsset))
+			if err != nil {
+				return err
+			}
+
+			// if the clause cap is >= the amount we're trying to receive, only go through this branch
+			switch cap.Cmp(amount) {
+			case 0, 1:
+				return s.receiveFromKeptOrDest(destinationClause.To, amount)
+			}
+
+			// otherwise try next clause (keep looping)
+		}
+		return s.receiveFromKeptOrDest(destination.Remaining, amount)
+
 	default:
 		utils.NonExhaustiveMatchPanic[any](destination)
 		return nil
@@ -853,15 +914,16 @@ func overdraft(
 	r parser.Range,
 	args []Value,
 ) (*Monetary, InterpreterError) {
-	if !s.OverdraftFunctionFeatureFlag {
-		return nil, ExperimentalFeature{FlagName: ExperimentalOverdraftFunctionFeatureFlag}
+	err := s.checkFeatureFlag(ExperimentalOverdraftFunctionFeatureFlag)
+	if err != nil {
+		return nil, err
 	}
 
 	// TODO more precise args range location
 	p := NewArgsParser(args)
 	account := parseArg(p, r, expectAccount)
 	asset := parseArg(p, r, expectAsset)
-	err := p.parse()
+	err = p.parse()
 	if err != nil {
 		return nil, err
 	}
@@ -982,3 +1044,12 @@ func ParsePortionSpecific(input string) (*big.Rat, InterpreterError) {
 
 	return res, nil
 }
+
+func (s programState) checkFeatureFlag(flag string) InterpreterError {
+	_, ok := s.FeatureFlags[flag]
+	if ok {
+		return nil
+	} else {
+		return ExperimentalFeature{FlagName: flag}
+	}
+}
diff --git a/internal/interpreter/interpreter_test.go b/internal/interpreter/interpreter_test.go
index 4b76f76..118528e 100644
--- a/internal/interpreter/interpreter_test.go
+++ b/internal/interpreter/interpreter_test.go
@@ -3582,3 +3582,203 @@ func TestSubMonetaries(t *testing.T) {
 	}
 	test(t, tc)
 }
+
+func TestOneofInSourceSendFirstBranch(t *testing.T) {
+	tc := NewTestCase()
+	tc.compile(t, `
+	send [GEM 15] (
+		source = oneof {
+			@a allowing unbounded overdraft // this branch succeeded
+			@empty
+		}
+		destination = @dest
+	)
+	`)
+	tc.expected = CaseResult{
+		Postings: []Posting{
+			{
+				Asset:       "GEM",
+				Amount:      big.NewInt(15),
+				Source:      "a",
+				Destination: "dest",
+			},
+		},
+		Error: nil,
+	}
+	testWithFeatureFlag(t, tc, machine.ExperimentalOneofFeatureFlag)
+}
+
+func TestOneofInSource(t *testing.T) {
+	tc := NewTestCase()
+	tc.compile(t, `
+	send [GEM 15] (
+		source = oneof {
+			@a allowing overdraft up to [GEM 14] // this doesn't succeed
+			@world
+		}
+		destination = @dest
+	)
+	`)
+	tc.expected = CaseResult{
+		Postings: []Posting{
+			{
+				Asset:       "GEM",
+				Amount:      big.NewInt(15),
+				Source:      "world",
+				Destination: "dest",
+			},
+		},
+		Error: nil,
+	}
+	testWithFeatureFlag(t, tc, machine.ExperimentalOneofFeatureFlag)
+}
+
+func TestOneofAllFailing(t *testing.T) {
+	tc := NewTestCase()
+	tc.compile(t, `
+	send [GEM 1] (
+		source = oneof {
+			@empty1
+			@empty2
+			@empty3
+		}
+		destination = @dest
+	)
+	`)
+	tc.expected = CaseResult{
+		Postings: []Posting{},
+		Error: machine.MissingFundsErr{
+			Asset:     "GEM",
+			Needed:    *big.NewInt(1),
+			Available: *big.NewInt(0),
+		},
+	}
+	testWithFeatureFlag(t, tc, machine.ExperimentalOneofFeatureFlag)
+}
+
+func TestOneofInSendAll(t *testing.T) {
+	tc := NewTestCase()
+	tc.compile(t, `
+	send [GEM *] (
+		source = oneof {
+			@s1 // only this is executed
+			@s2
+			@s3
+		}
+		destination = @dest
+	)
+	`)
+	tc.setBalance("s1", "GEM", 10)
+	tc.expected = CaseResult{
+		Postings: []Posting{
+			{
+				Asset:       "GEM",
+				Amount:      big.NewInt(10),
+				Source:      "s1",
+				Destination: "dest",
+			},
+		},
+		Error: nil,
+	}
+	testWithFeatureFlag(t, tc, machine.ExperimentalOneofFeatureFlag)
+}
+
+func TestOneofSingleton(t *testing.T) {
+	tc := NewTestCase()
+	tc.setBalance("a", "GEM", 10)
+	tc.compile(t, `
+	send [GEM 10] (
+		source = oneof { @a }
+		destination = @dest
+	)
+	`)
+	tc.expected = CaseResult{
+		Postings: []Posting{
+			{
+				Asset:       "GEM",
+				Amount:      big.NewInt(10),
+				Source:      "a",
+				Destination: "dest",
+			},
+		},
+		Error: nil,
+	}
+	testWithFeatureFlag(t, tc, machine.ExperimentalOneofFeatureFlag)
+}
+
+func TestOneofDestinationFirstClause(t *testing.T) {
+	tc := NewTestCase()
+	tc.compile(t, `
+	send [GEM 10] (
+		source = @world
+		destination = oneof {
+			max [GEM 99999] to @a
+			remaining to @b
+		}
+	)
+	`)
+	tc.expected = CaseResult{
+		Postings: []Posting{
+			{
+				Asset:       "GEM",
+				Amount:      big.NewInt(10),
+				Source:      "world",
+				Destination: "a",
+			},
+		},
+		Error: nil,
+	}
+	testWithFeatureFlag(t, tc, machine.ExperimentalOneofFeatureFlag)
+}
+
+func TestOneofDestinationSecondClause(t *testing.T) {
+	tc := NewTestCase()
+	tc.compile(t, `
+	send [GEM 10] (
+		source = @world
+		destination = oneof {
+			max [GEM 9] to @a
+			max [GEM 10] to @b
+			remaining to @rem
+		}
+	)
+	`)
+	tc.expected = CaseResult{
+		Postings: []Posting{
+			{
+				Asset:       "GEM",
+				Amount:      big.NewInt(10),
+				Source:      "world",
+				Destination: "b",
+			},
+		},
+		Error: nil,
+	}
+	testWithFeatureFlag(t, tc, machine.ExperimentalOneofFeatureFlag)
+}
+
+func TestOneofDestinationRemainingClause(t *testing.T) {
+	tc := NewTestCase()
+	tc.compile(t, `
+	send [GEM 100] (
+		source = @world
+		destination = oneof {
+			max [GEM 9] to @a
+			max [GEM 10] to @b
+			remaining to @rem
+		}
+	)
+	`)
+	tc.expected = CaseResult{
+		Postings: []Posting{
+			{
+				Asset:       "GEM",
+				Amount:      big.NewInt(100),
+				Source:      "world",
+				Destination: "rem",
+			},
+		},
+		Error: nil,
+	}
+	testWithFeatureFlag(t, tc, machine.ExperimentalOneofFeatureFlag)
+}
diff --git a/internal/parser/__snapshots__/parser_test.snap b/internal/parser/__snapshots__/parser_test.snap
index 3dbcd31..5fdc027 100755
--- a/internal/parser/__snapshots__/parser_test.snap
+++ b/internal/parser/__snapshots__/parser_test.snap
@@ -1897,13 +1897,13 @@ parser.Program{
 
 [TestShowErrorLines - 1]
 Got errors while parsing:
-mismatched input 'err' expecting {'max', '(', '[', '{', RATIO_PORTION_LITERAL, PERCENTAGE_PORTION_LITERAL, STRING, NUMBER, VARIABLE_NAME, ACCOUNT, ASSET}
+mismatched input 'err' expecting {'oneof', 'max', '(', '[', '{', RATIO_PORTION_LITERAL, PERCENTAGE_PORTION_LITERAL, STRING, NUMBER, VARIABLE_NAME, ACCOUNT, ASSET}
   0 | send [EUR/2 100] (
   1 |   source = err
     |            ~~
   2 |   destination = ee
 
-mismatched input 'ee' expecting {'(', '[', '{', RATIO_PORTION_LITERAL, PERCENTAGE_PORTION_LITERAL, STRING, NUMBER, VARIABLE_NAME, ACCOUNT, ASSET}
+mismatched input 'ee' expecting {'oneof', '(', '[', '{', RATIO_PORTION_LITERAL, PERCENTAGE_PORTION_LITERAL, STRING, NUMBER, VARIABLE_NAME, ACCOUNT, ASSET}
   1 |   source = err
   2 |   destination = ee
     |                 ~
@@ -2366,3 +2366,163 @@ parser.Program{
     },
 }
 ---
+
+[TestOneofSource - 1]
+parser.Program{
+    Vars:       nil,
+    Statements: {
+        &parser.SendStatement{
+            Range: parser.Range{
+                Start: parser.Position{},
+                End:   parser.Position{Character:1, Line:3},
+            },
+            SentValue: &parser.SentValueLiteral{
+                Range: parser.Range{
+                    Start: parser.Position{Character:5, Line:0},
+                    End:   parser.Position{Character:9, Line:0},
+                },
+                Monetary: &parser.Variable{
+                    Range: parser.Range{
+                        Start: parser.Position{Character:5, Line:0},
+                        End:   parser.Position{Character:9, Line:0},
+                    },
+                    Name: "amt",
+                },
+            },
+            Source: &parser.SourceOneof{
+                Range: parser.Range{
+                    Start: parser.Position{Character:11, Line:1},
+                    End:   parser.Position{Character:28, Line:1},
+                },
+                Sources: {
+                    &parser.SourceAccount{
+                        ValueExpr: &parser.AccountLiteral{
+                            Range: parser.Range{
+                                Start: parser.Position{Character:19, Line:1},
+                                End:   parser.Position{Character:22, Line:1},
+                            },
+                            Name: "s1",
+                        },
+                    },
+                    &parser.SourceAccount{
+                        ValueExpr: &parser.AccountLiteral{
+                            Range: parser.Range{
+                                Start: parser.Position{Character:23, Line:1},
+                                End:   parser.Position{Character:26, Line:1},
+                            },
+                            Name: "s2",
+                        },
+                    },
+                },
+            },
+            Destination: &parser.DestinationAccount{
+                ValueExpr: &parser.AccountLiteral{
+                    Range: parser.Range{
+                        Start: parser.Position{Character:16, Line:2},
+                        End:   parser.Position{Character:18, Line:2},
+                    },
+                    Name: "d",
+                },
+            },
+        },
+    },
+}
+---
+
+[TestOneofDestination - 1]
+parser.Program{
+    Vars:       nil,
+    Statements: {
+        &parser.SendStatement{
+            Range: parser.Range{
+                Start: parser.Position{},
+                End:   parser.Position{Character:2, Line:7},
+            },
+            SentValue: &parser.SentValueLiteral{
+                Range: parser.Range{
+                    Start: parser.Position{Character:5, Line:0},
+                    End:   parser.Position{Character:9, Line:0},
+                },
+                Monetary: &parser.Variable{
+                    Range: parser.Range{
+                        Start: parser.Position{Character:5, Line:0},
+                        End:   parser.Position{Character:9, Line:0},
+                    },
+                    Name: "amt",
+                },
+            },
+            Source: &parser.SourceAccount{
+                ValueExpr: &parser.AccountLiteral{
+                    Range: parser.Range{
+                        Start: parser.Position{Character:10, Line:1},
+                        End:   parser.Position{Character:12, Line:1},
+                    },
+                    Name: "s",
+                },
+            },
+            Destination: &parser.DestinationOneof{
+                Range: parser.Range{
+                    Start: parser.Position{Character:15, Line:2},
+                    End:   parser.Position{Character:3, Line:6},
+                },
+                Clauses: {
+                    {
+                        Range: parser.Range{
+                            Start: parser.Position{Character:2, Line:3},
+                            End:   parser.Position{Character:16, Line:3},
+                        },
+                        Cap: &parser.Variable{
+                            Range: parser.Range{
+                                Start: parser.Position{Character:6, Line:3},
+                                End:   parser.Position{Character:9, Line:3},
+                            },
+                            Name: "m1",
+                        },
+                        To: &parser.DestinationTo{
+                            Destination: &parser.DestinationAccount{
+                                ValueExpr: &parser.AccountLiteral{
+                                    Range: parser.Range{
+                                        Start: parser.Position{Character:13, Line:3},
+                                        End:   parser.Position{Character:16, Line:3},
+                                    },
+                                    Name: "d1",
+                                },
+                            },
+                        },
+                    },
+                    {
+                        Range: parser.Range{
+                            Start: parser.Position{Character:2, Line:4},
+                            End:   parser.Position{Character:14, Line:4},
+                        },
+                        Cap: &parser.Variable{
+                            Range: parser.Range{
+                                Start: parser.Position{Character:6, Line:4},
+                                End:   parser.Position{Character:9, Line:4},
+                            },
+                            Name: "m2",
+                        },
+                        To: &parser.DestinationKept{
+                            Range: parser.Range{
+                                Start: parser.Position{Character:10, Line:4},
+                                End:   parser.Position{Character:14, Line:4},
+                            },
+                        },
+                    },
+                },
+                Remaining: &parser.DestinationTo{
+                    Destination: &parser.DestinationAccount{
+                        ValueExpr: &parser.AccountLiteral{
+                            Range: parser.Range{
+                                Start: parser.Position{Character:15, Line:5},
+                                End:   parser.Position{Character:18, Line:5},
+                            },
+                            Name: "d3",
+                        },
+                    },
+                },
+            },
+        },
+    },
+}
+---
diff --git a/internal/parser/antlr/Numscript.interp b/internal/parser/antlr/Numscript.interp
index d1001d2..6c648b7 100644
--- a/internal/parser/antlr/Numscript.interp
+++ b/internal/parser/antlr/Numscript.interp
@@ -1,6 +1,7 @@
 token literal names:
 null
 '+'
+'oneof'
 null
 null
 null
@@ -41,6 +42,7 @@ null
 token symbolic names:
 null
 null
+null
 WS
 NEWLINE
 MULTILINE_COMMENT
@@ -101,4 +103,4 @@ statement
 
 
 atn:
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\ No newline at end of file
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35, 1, 0, 0, 0, 222, 223, 5, 11, 0, 0, 223, 224, 3, 34, 17, 0, 224, 225, 5, 21, 0, 0, 225, 226, 5, 9, 0, 0, 226, 227, 5, 28, 0, 0, 227, 228, 3, 22, 11, 0, 228, 229, 5, 10, 0, 0, 229, 230, 5, 28, 0, 0, 230, 231, 3, 30, 15, 0, 231, 232, 5, 22, 0, 0, 232, 240, 1, 0, 0, 0, 233, 234, 5, 20, 0, 0, 234, 235, 3, 34, 17, 0, 235, 236, 5, 12, 0, 0, 236, 237, 3, 4, 2, 0, 237, 240, 1, 0, 0, 0, 238, 240, 3, 8, 4, 0, 239, 222, 1, 0, 0, 0, 239, 233, 1, 0, 0, 0, 239, 238, 1, 0, 0, 0, 240, 37, 1, 0, 0, 0, 21, 45, 59, 66, 74, 80, 90, 97, 103, 108, 121, 140, 148, 157, 166, 175, 186, 194, 206, 213, 220, 239]
\ No newline at end of file
diff --git a/internal/parser/antlr/Numscript.tokens b/internal/parser/antlr/Numscript.tokens
index 9005dee..30f2306 100644
--- a/internal/parser/antlr/Numscript.tokens
+++ b/internal/parser/antlr/Numscript.tokens
@@ -1,62 +1,64 @@
 T__0=1
-WS=2
-NEWLINE=3
-MULTILINE_COMMENT=4
-LINE_COMMENT=5
-VARS=6
-MAX=7
-SOURCE=8
-DESTINATION=9
-SEND=10
-FROM=11
-UP=12
-TO=13
-REMAINING=14
-ALLOWING=15
-UNBOUNDED=16
-OVERDRAFT=17
-KEPT=18
-SAVE=19
-LPARENS=20
-RPARENS=21
-LBRACKET=22
-RBRACKET=23
-LBRACE=24
-RBRACE=25
-COMMA=26
-EQ=27
-STAR=28
-MINUS=29
-RATIO_PORTION_LITERAL=30
-PERCENTAGE_PORTION_LITERAL=31
-STRING=32
-IDENTIFIER=33
-NUMBER=34
-VARIABLE_NAME=35
-ACCOUNT=36
-ASSET=37
+T__1=2
+WS=3
+NEWLINE=4
+MULTILINE_COMMENT=5
+LINE_COMMENT=6
+VARS=7
+MAX=8
+SOURCE=9
+DESTINATION=10
+SEND=11
+FROM=12
+UP=13
+TO=14
+REMAINING=15
+ALLOWING=16
+UNBOUNDED=17
+OVERDRAFT=18
+KEPT=19
+SAVE=20
+LPARENS=21
+RPARENS=22
+LBRACKET=23
+RBRACKET=24
+LBRACE=25
+RBRACE=26
+COMMA=27
+EQ=28
+STAR=29
+MINUS=30
+RATIO_PORTION_LITERAL=31
+PERCENTAGE_PORTION_LITERAL=32
+STRING=33
+IDENTIFIER=34
+NUMBER=35
+VARIABLE_NAME=36
+ACCOUNT=37
+ASSET=38
 '+'=1
-'vars'=6
-'max'=7
-'source'=8
-'destination'=9
-'send'=10
-'from'=11
-'up'=12
-'to'=13
-'remaining'=14
-'allowing'=15
-'unbounded'=16
-'overdraft'=17
-'kept'=18
-'save'=19
-'('=20
-')'=21
-'['=22
-']'=23
-'{'=24
-'}'=25
-','=26
-'='=27
-'*'=28
-'-'=29
+'oneof'=2
+'vars'=7
+'max'=8
+'source'=9
+'destination'=10
+'send'=11
+'from'=12
+'up'=13
+'to'=14
+'remaining'=15
+'allowing'=16
+'unbounded'=17
+'overdraft'=18
+'kept'=19
+'save'=20
+'('=21
+')'=22
+'['=23
+']'=24
+'{'=25
+'}'=26
+','=27
+'='=28
+'*'=29
+'-'=30
diff --git a/internal/parser/antlr/NumscriptLexer.interp b/internal/parser/antlr/NumscriptLexer.interp
index d7627e2..f420ea7 100644
--- a/internal/parser/antlr/NumscriptLexer.interp
+++ b/internal/parser/antlr/NumscriptLexer.interp
@@ -1,6 +1,7 @@
 token literal names:
 null
 '+'
+'oneof'
 null
 null
 null
@@ -41,6 +42,7 @@ null
 token symbolic names:
 null
 null
+null
 WS
 NEWLINE
 MULTILINE_COMMENT
@@ -80,6 +82,7 @@ ASSET
 
 rule names:
 T__0
+T__1
 WS
 NEWLINE
 MULTILINE_COMMENT
@@ -125,4 +128,4 @@ mode names:
 DEFAULT_MODE
 
 atn:
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9, 1, 9, 1, 9, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 11, 1, 11, 1, 11, 1, 12, 1, 12, 1, 12, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 17, 1, 17, 1, 17, 1, 17, 1, 17, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 19, 1, 19, 1, 20, 1, 20, 1, 21, 1, 21, 1, 22, 1, 22, 1, 23, 1, 23, 1, 24, 1, 24, 1, 25, 1, 25, 1, 26, 1, 26, 1, 27, 1, 27, 1, 28, 1, 28, 1, 29, 4, 29, 232, 8, 29, 11, 29, 12, 29, 233, 1, 29, 3, 29, 237, 8, 29, 1, 29, 1, 29, 3, 29, 241, 8, 29, 1, 29, 4, 29, 244, 8, 29, 11, 29, 12, 29, 245, 1, 30, 4, 30, 249, 8, 30, 11, 30, 12, 30, 250, 1, 30, 1, 30, 4, 30, 255, 8, 30, 11, 30, 12, 30, 256, 3, 30, 259, 8, 30, 1, 30, 1, 30, 1, 31, 1, 31, 1, 31, 1, 31, 5, 31, 267, 8, 31, 10, 31, 12, 31, 270, 9, 31, 1, 31, 1, 31, 1, 32, 4, 32, 275, 8, 32, 11, 32, 12, 32, 276, 1, 32, 5, 32, 280, 8, 32, 10, 32, 12, 32, 283, 9, 32, 1, 33, 3, 33, 286, 8, 33, 1, 33, 4, 33, 289, 8, 33, 11, 33, 12, 33, 290, 1, 33, 1, 33, 4, 33, 295, 8, 33, 11, 33, 12, 33, 296, 5, 33, 299, 8, 33, 10, 33, 12, 33, 302, 9, 33, 1, 34, 1, 34, 4, 34, 306, 8, 34, 11, 34, 12, 34, 307, 1, 34, 5, 34, 311, 8, 34, 10, 34, 12, 34, 314, 9, 34, 1, 35, 1, 35, 4, 35, 318, 8, 35, 11, 35, 12, 35, 319, 1, 35, 1, 35, 4, 35, 324, 8, 35, 11, 35, 12, 35, 325, 5, 35, 328, 8, 35, 10, 35, 12, 35, 331, 9, 35, 1, 36, 1, 36, 5, 36, 335, 8, 36, 10, 36, 12, 36, 338, 9, 36, 1, 36, 1, 36, 4, 36, 342, 8, 36, 11, 36, 12, 36, 343, 3, 36, 346, 8, 36, 2, 96, 110, 0, 37, 1, 1, 3, 2, 5, 3, 7, 4, 9, 5, 11, 6, 13, 7, 15, 8, 17, 9, 19, 10, 21, 11, 23, 12, 25, 13, 27, 14, 29, 15, 31, 16, 33, 17, 35, 18, 37, 19, 39, 20, 41, 21, 43, 22, 45, 23, 47, 24, 49, 25, 51, 26, 53, 27, 55, 28, 57, 29, 59, 30, 61, 31, 63, 32, 65, 33, 67, 34, 69, 35, 71, 36, 73, 37, 1, 0, 11, 3, 0, 9, 10, 13, 13, 32, 32, 2, 0, 10, 10, 13, 13, 1, 0, 48, 57, 1, 0, 32, 32, 3, 0, 10, 10, 13, 13, 34, 34, 1, 0, 97, 122, 2, 0, 95, 95, 97, 122, 3, 0, 48, 57, 95, 95, 97, 122, 5, 0, 45, 45, 48, 57, 65, 90, 95, 95, 97, 122, 1, 0, 65, 90, 2, 0, 48, 57, 65, 90, 374, 0, 1, 1, 0, 0, 0, 0, 3, 1, 0, 0, 0, 0, 5, 1, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 9, 1, 0, 0, 0, 0, 11, 1, 0, 0, 0, 0, 13, 1, 0, 0, 0, 0, 15, 1, 0, 0, 0, 0, 17, 1, 0, 0, 0, 0, 19, 1, 0, 0, 0, 0, 21, 1, 0, 0, 0, 0, 23, 1, 0, 0, 0, 0, 25, 1, 0, 0, 0, 0, 27, 1, 0, 0, 0, 0, 29, 1, 0, 0, 0, 0, 31, 1, 0, 0, 0, 0, 33, 1, 0, 0, 0, 0, 35, 1, 0, 0, 0, 0, 37, 1, 0, 0, 0, 0, 39, 1, 0, 0, 0, 0, 41, 1, 0, 0, 0, 0, 43, 1, 0, 0, 0, 0, 45, 1, 0, 0, 0, 0, 47, 1, 0, 0, 0, 0, 49, 1, 0, 0, 0, 0, 51, 1, 0, 0, 0, 0, 53, 1, 0, 0, 0, 0, 55, 1, 0, 0, 0, 0, 57, 1, 0, 0, 0, 0, 59, 1, 0, 0, 0, 0, 61, 1, 0, 0, 0, 0, 63, 1, 0, 0, 0, 0, 65, 1, 0, 0, 0, 0, 67, 1, 0, 0, 0, 0, 69, 1, 0, 0, 0, 0, 71, 1, 0, 0, 0, 0, 73, 1, 0, 0, 0, 1, 75, 1, 0, 0, 0, 3, 78, 1, 0, 0, 0, 5, 85, 1, 0, 0, 0, 7, 89, 1, 0, 0, 0, 9, 104, 1, 0, 0, 0, 11, 117, 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0, 175, 176, 5, 119, 0, 0, 176, 177, 5, 105, 0, 0, 177, 178, 5, 110, 0, 0, 178, 179, 5, 103, 0, 0, 179, 30, 1, 0, 0, 0, 180, 181, 5, 117, 0, 0, 181, 182, 5, 110, 0, 0, 182, 183, 5, 98, 0, 0, 183, 184, 5, 111, 0, 0, 184, 185, 5, 117, 0, 0, 185, 186, 5, 110, 0, 0, 186, 187, 5, 100, 0, 0, 187, 188, 5, 101, 0, 0, 188, 189, 5, 100, 0, 0, 189, 32, 1, 0, 0, 0, 190, 191, 5, 111, 0, 0, 191, 192, 5, 118, 0, 0, 192, 193, 5, 101, 0, 0, 193, 194, 5, 114, 0, 0, 194, 195, 5, 100, 0, 0, 195, 196, 5, 114, 0, 0, 196, 197, 5, 97, 0, 0, 197, 198, 5, 102, 0, 0, 198, 199, 5, 116, 0, 0, 199, 34, 1, 0, 0, 0, 200, 201, 5, 107, 0, 0, 201, 202, 5, 101, 0, 0, 202, 203, 5, 112, 0, 0, 203, 204, 5, 116, 0, 0, 204, 36, 1, 0, 0, 0, 205, 206, 5, 115, 0, 0, 206, 207, 5, 97, 0, 0, 207, 208, 5, 118, 0, 0, 208, 209, 5, 101, 0, 0, 209, 38, 1, 0, 0, 0, 210, 211, 5, 40, 0, 0, 211, 40, 1, 0, 0, 0, 212, 213, 5, 41, 0, 0, 213, 42, 1, 0, 0, 0, 214, 215, 5, 91, 0, 0, 215, 44, 1, 0, 0, 0, 216, 217, 5, 93, 0, 0, 217, 46, 1, 0, 0, 0, 218, 219, 5, 123, 0, 0, 219, 48, 1, 0, 0, 0, 220, 221, 5, 125, 0, 0, 221, 50, 1, 0, 0, 0, 222, 223, 5, 44, 0, 0, 223, 52, 1, 0, 0, 0, 224, 225, 5, 61, 0, 0, 225, 54, 1, 0, 0, 0, 226, 227, 5, 42, 0, 0, 227, 56, 1, 0, 0, 0, 228, 229, 5, 45, 0, 0, 229, 58, 1, 0, 0, 0, 230, 232, 7, 2, 0, 0, 231, 230, 1, 0, 0, 0, 232, 233, 1, 0, 0, 0, 233, 231, 1, 0, 0, 0, 233, 234, 1, 0, 0, 0, 234, 236, 1, 0, 0, 0, 235, 237, 7, 3, 0, 0, 236, 235, 1, 0, 0, 0, 236, 237, 1, 0, 0, 0, 237, 238, 1, 0, 0, 0, 238, 240, 5, 47, 0, 0, 239, 241, 7, 3, 0, 0, 240, 239, 1, 0, 0, 0, 240, 241, 1, 0, 0, 0, 241, 243, 1, 0, 0, 0, 242, 244, 7, 2, 0, 0, 243, 242, 1, 0, 0, 0, 244, 245, 1, 0, 0, 0, 245, 243, 1, 0, 0, 0, 245, 246, 1, 0, 0, 0, 246, 60, 1, 0, 0, 0, 247, 249, 7, 2, 0, 0, 248, 247, 1, 0, 0, 0, 249, 250, 1, 0, 0, 0, 250, 248, 1, 0, 0, 0, 250, 251, 1, 0, 0, 0, 251, 258, 1, 0, 0, 0, 252, 254, 5, 46, 0, 0, 253, 255, 7, 2, 0, 0, 254, 253, 1, 0, 0, 0, 255, 256, 1, 0, 0, 0, 256, 254, 1, 0, 0, 0, 256, 257, 1, 0, 0, 0, 257, 259, 1, 0, 0, 0, 258, 252, 1, 0, 0, 0, 258, 259, 1, 0, 0, 0, 259, 260, 1, 0, 0, 0, 260, 261, 5, 37, 0, 0, 261, 62, 1, 0, 0, 0, 262, 268, 5, 34, 0, 0, 263, 264, 5, 92, 0, 0, 264, 267, 5, 34, 0, 0, 265, 267, 8, 4, 0, 0, 266, 263, 1, 0, 0, 0, 266, 265, 1, 0, 0, 0, 267, 270, 1, 0, 0, 0, 268, 266, 1, 0, 0, 0, 268, 269, 1, 0, 0, 0, 269, 271, 1, 0, 0, 0, 270, 268, 1, 0, 0, 0, 271, 272, 5, 34, 0, 0, 272, 64, 1, 0, 0, 0, 273, 275, 7, 5, 0, 0, 274, 273, 1, 0, 0, 0, 275, 276, 1, 0, 0, 0, 276, 274, 1, 0, 0, 0, 276, 277, 1, 0, 0, 0, 277, 281, 1, 0, 0, 0, 278, 280, 7, 6, 0, 0, 279, 278, 1, 0, 0, 0, 280, 283, 1, 0, 0, 0, 281, 279, 1, 0, 0, 0, 281, 282, 1, 0, 0, 0, 282, 66, 1, 0, 0, 0, 283, 281, 1, 0, 0, 0, 284, 286, 3, 57, 28, 0, 285, 284, 1, 0, 0, 0, 285, 286, 1, 0, 0, 0, 286, 288, 1, 0, 0, 0, 287, 289, 7, 2, 0, 0, 288, 287, 1, 0, 0, 0, 289, 290, 1, 0, 0, 0, 290, 288, 1, 0, 0, 0, 290, 291, 1, 0, 0, 0, 291, 300, 1, 0, 0, 0, 292, 294, 5, 95, 0, 0, 293, 295, 7, 2, 0, 0, 294, 293, 1, 0, 0, 0, 295, 296, 1, 0, 0, 0, 296, 294, 1, 0, 0, 0, 296, 297, 1, 0, 0, 0, 297, 299, 1, 0, 0, 0, 298, 292, 1, 0, 0, 0, 299, 302, 1, 0, 0, 0, 300, 298, 1, 0, 0, 0, 300, 301, 1, 0, 0, 0, 301, 68, 1, 0, 0, 0, 302, 300, 1, 0, 0, 0, 303, 305, 5, 36, 0, 0, 304, 306, 7, 6, 0, 0, 305, 304, 1, 0, 0, 0, 306, 307, 1, 0, 0, 0, 307, 305, 1, 0, 0, 0, 307, 308, 1, 0, 0, 0, 308, 312, 1, 0, 0, 0, 309, 311, 7, 7, 0, 0, 310, 309, 1, 0, 0, 0, 311, 314, 1, 0, 0, 0, 312, 310, 1, 0, 0, 0, 312, 313, 1, 0, 0, 0, 313, 70, 1, 0, 0, 0, 314, 312, 1, 0, 0, 0, 315, 317, 5, 64, 0, 0, 316, 318, 7, 8, 0, 0, 317, 316, 1, 0, 0, 0, 318, 319, 1, 0, 0, 0, 319, 317, 1, 0, 0, 0, 319, 320, 1, 0, 0, 0, 320, 329, 1, 0, 0, 0, 321, 323, 5, 58, 0, 0, 322, 324, 7, 8, 0, 0, 323, 322, 1, 0, 0, 0, 324, 325, 1, 0, 0, 0, 325, 323, 1, 0, 0, 0, 325, 326, 1, 0, 0, 0, 326, 328, 1, 0, 0, 0, 327, 321, 1, 0, 0, 0, 328, 331, 1, 0, 0, 0, 329, 327, 1, 0, 0, 0, 329, 330, 1, 0, 0, 0, 330, 72, 1, 0, 0, 0, 331, 329, 1, 0, 0, 0, 332, 336, 7, 9, 0, 0, 333, 335, 7, 10, 0, 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\ No newline at end of file
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\ No newline at end of file
diff --git a/internal/parser/antlr/NumscriptLexer.tokens b/internal/parser/antlr/NumscriptLexer.tokens
index 9005dee..30f2306 100644
--- a/internal/parser/antlr/NumscriptLexer.tokens
+++ b/internal/parser/antlr/NumscriptLexer.tokens
@@ -1,62 +1,64 @@
 T__0=1
-WS=2
-NEWLINE=3
-MULTILINE_COMMENT=4
-LINE_COMMENT=5
-VARS=6
-MAX=7
-SOURCE=8
-DESTINATION=9
-SEND=10
-FROM=11
-UP=12
-TO=13
-REMAINING=14
-ALLOWING=15
-UNBOUNDED=16
-OVERDRAFT=17
-KEPT=18
-SAVE=19
-LPARENS=20
-RPARENS=21
-LBRACKET=22
-RBRACKET=23
-LBRACE=24
-RBRACE=25
-COMMA=26
-EQ=27
-STAR=28
-MINUS=29
-RATIO_PORTION_LITERAL=30
-PERCENTAGE_PORTION_LITERAL=31
-STRING=32
-IDENTIFIER=33
-NUMBER=34
-VARIABLE_NAME=35
-ACCOUNT=36
-ASSET=37
+T__1=2
+WS=3
+NEWLINE=4
+MULTILINE_COMMENT=5
+LINE_COMMENT=6
+VARS=7
+MAX=8
+SOURCE=9
+DESTINATION=10
+SEND=11
+FROM=12
+UP=13
+TO=14
+REMAINING=15
+ALLOWING=16
+UNBOUNDED=17
+OVERDRAFT=18
+KEPT=19
+SAVE=20
+LPARENS=21
+RPARENS=22
+LBRACKET=23
+RBRACKET=24
+LBRACE=25
+RBRACE=26
+COMMA=27
+EQ=28
+STAR=29
+MINUS=30
+RATIO_PORTION_LITERAL=31
+PERCENTAGE_PORTION_LITERAL=32
+STRING=33
+IDENTIFIER=34
+NUMBER=35
+VARIABLE_NAME=36
+ACCOUNT=37
+ASSET=38
 '+'=1
-'vars'=6
-'max'=7
-'source'=8
-'destination'=9
-'send'=10
-'from'=11
-'up'=12
-'to'=13
-'remaining'=14
-'allowing'=15
-'unbounded'=16
-'overdraft'=17
-'kept'=18
-'save'=19
-'('=20
-')'=21
-'['=22
-']'=23
-'{'=24
-'}'=25
-','=26
-'='=27
-'*'=28
-'-'=29
+'oneof'=2
+'vars'=7
+'max'=8
+'source'=9
+'destination'=10
+'send'=11
+'from'=12
+'up'=13
+'to'=14
+'remaining'=15
+'allowing'=16
+'unbounded'=17
+'overdraft'=18
+'kept'=19
+'save'=20
+'('=21
+')'=22
+'['=23
+']'=24
+'{'=25
+'}'=26
+','=27
+'='=28
+'*'=29
+'-'=30
diff --git a/internal/parser/antlr/numscript_base_listener.go b/internal/parser/antlr/numscript_base_listener.go
index 530c555..2a1a1a5 100644
--- a/internal/parser/antlr/numscript_base_listener.go
+++ b/internal/parser/antlr/numscript_base_listener.go
@@ -187,6 +187,12 @@ func (s *BaseNumscriptListener) EnterSrcInorder(ctx *SrcInorderContext) {}
 // ExitSrcInorder is called when production srcInorder is exited.
 func (s *BaseNumscriptListener) ExitSrcInorder(ctx *SrcInorderContext) {}
 
+// EnterSrcOneof is called when production srcOneof is entered.
+func (s *BaseNumscriptListener) EnterSrcOneof(ctx *SrcOneofContext) {}
+
+// ExitSrcOneof is called when production srcOneof is exited.
+func (s *BaseNumscriptListener) ExitSrcOneof(ctx *SrcOneofContext) {}
+
 // EnterSrcCapped is called when production srcCapped is entered.
 func (s *BaseNumscriptListener) EnterSrcCapped(ctx *SrcCappedContext) {}
 
@@ -235,6 +241,12 @@ func (s *BaseNumscriptListener) EnterDestInorder(ctx *DestInorderContext) {}
 // ExitDestInorder is called when production destInorder is exited.
 func (s *BaseNumscriptListener) ExitDestInorder(ctx *DestInorderContext) {}
 
+// EnterDestOneof is called when production destOneof is entered.
+func (s *BaseNumscriptListener) EnterDestOneof(ctx *DestOneofContext) {}
+
+// ExitDestOneof is called when production destOneof is exited.
+func (s *BaseNumscriptListener) ExitDestOneof(ctx *DestOneofContext) {}
+
 // EnterAllotmentClauseDest is called when production allotmentClauseDest is entered.
 func (s *BaseNumscriptListener) EnterAllotmentClauseDest(ctx *AllotmentClauseDestContext) {}
 
diff --git a/internal/parser/antlr/numscript_lexer.go b/internal/parser/antlr/numscript_lexer.go
index b4f2671..8bf2f74 100644
--- a/internal/parser/antlr/numscript_lexer.go
+++ b/internal/parser/antlr/numscript_lexer.go
@@ -43,13 +43,13 @@ func numscriptlexerLexerInit() {
 		"DEFAULT_MODE",
 	}
 	staticData.LiteralNames = []string{
-		"", "'+'", "", "", "", "", "'vars'", "'max'", "'source'", "'destination'",
-		"'send'", "'from'", "'up'", "'to'", "'remaining'", "'allowing'", "'unbounded'",
-		"'overdraft'", "'kept'", "'save'", "'('", "')'", "'['", "']'", "'{'",
-		"'}'", "','", "'='", "'*'", "'-'",
+		"", "'+'", "'oneof'", "", "", "", "", "'vars'", "'max'", "'source'",
+		"'destination'", "'send'", "'from'", "'up'", "'to'", "'remaining'",
+		"'allowing'", "'unbounded'", "'overdraft'", "'kept'", "'save'", "'('",
+		"')'", "'['", "']'", "'{'", "'}'", "','", "'='", "'*'", "'-'",
 	}
 	staticData.SymbolicNames = []string{
-		"", "", "WS", "NEWLINE", "MULTILINE_COMMENT", "LINE_COMMENT", "VARS",
+		"", "", "", "WS", "NEWLINE", "MULTILINE_COMMENT", "LINE_COMMENT", "VARS",
 		"MAX", "SOURCE", "DESTINATION", "SEND", "FROM", "UP", "TO", "REMAINING",
 		"ALLOWING", "UNBOUNDED", "OVERDRAFT", "KEPT", "SAVE", "LPARENS", "RPARENS",
 		"LBRACKET", "RBRACKET", "LBRACE", "RBRACE", "COMMA", "EQ", "STAR", "MINUS",
@@ -57,174 +57,178 @@ func numscriptlexerLexerInit() {
 		"NUMBER", "VARIABLE_NAME", "ACCOUNT", "ASSET",
 	}
 	staticData.RuleNames = []string{
-		"T__0", "WS", "NEWLINE", "MULTILINE_COMMENT", "LINE_COMMENT", "VARS",
-		"MAX", "SOURCE", "DESTINATION", "SEND", "FROM", "UP", "TO", "REMAINING",
-		"ALLOWING", "UNBOUNDED", "OVERDRAFT", "KEPT", "SAVE", "LPARENS", "RPARENS",
-		"LBRACKET", "RBRACKET", "LBRACE", "RBRACE", "COMMA", "EQ", "STAR", "MINUS",
-		"RATIO_PORTION_LITERAL", "PERCENTAGE_PORTION_LITERAL", "STRING", "IDENTIFIER",
-		"NUMBER", "VARIABLE_NAME", "ACCOUNT", "ASSET",
+		"T__0", "T__1", "WS", "NEWLINE", "MULTILINE_COMMENT", "LINE_COMMENT",
+		"VARS", "MAX", "SOURCE", "DESTINATION", "SEND", "FROM", "UP", "TO",
+		"REMAINING", "ALLOWING", "UNBOUNDED", "OVERDRAFT", "KEPT", "SAVE", "LPARENS",
+		"RPARENS", "LBRACKET", "RBRACKET", "LBRACE", "RBRACE", "COMMA", "EQ",
+		"STAR", "MINUS", "RATIO_PORTION_LITERAL", "PERCENTAGE_PORTION_LITERAL",
+		"STRING", "IDENTIFIER", "NUMBER", "VARIABLE_NAME", "ACCOUNT", "ASSET",
 	}
 	staticData.PredictionContextCache = antlr.NewPredictionContextCache()
 	staticData.serializedATN = []int32{
-		4, 0, 37, 347, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2,
+		4, 0, 38, 355, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2,
 		4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2,
 		10, 7, 10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15,
 		7, 15, 2, 16, 7, 16, 2, 17, 7, 17, 2, 18, 7, 18, 2, 19, 7, 19, 2, 20, 7,
 		20, 2, 21, 7, 21, 2, 22, 7, 22, 2, 23, 7, 23, 2, 24, 7, 24, 2, 25, 7, 25,
 		2, 26, 7, 26, 2, 27, 7, 27, 2, 28, 7, 28, 2, 29, 7, 29, 2, 30, 7, 30, 2,
 		31, 7, 31, 2, 32, 7, 32, 2, 33, 7, 33, 2, 34, 7, 34, 2, 35, 7, 35, 2, 36,
-		7, 36, 1, 0, 1, 0, 1, 1, 4, 1, 79, 8, 1, 11, 1, 12, 1, 80, 1, 1, 1, 1,
-		1, 2, 4, 2, 86, 8, 2, 11, 2, 12, 2, 87, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 5,
-		3, 95, 8, 3, 10, 3, 12, 3, 98, 9, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 4,
-		1, 4, 1, 4, 1, 4, 5, 4, 109, 8, 4, 10, 4, 12, 4, 112, 9, 4, 1, 4, 1, 4,
-		1, 4, 1, 4, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 6, 1, 6, 1, 6, 1, 6, 1, 7,
-		1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8,
-		1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 10,
-		1, 10, 1, 10, 1, 10, 1, 10, 1, 11, 1, 11, 1, 11, 1, 12, 1, 12, 1, 12, 1,
-		13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 14,
-		1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 15, 1, 15, 1,
-		15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 16, 1, 16, 1, 16,
-		1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 17, 1, 17, 1, 17, 1,
-		17, 1, 17, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 19, 1, 19, 1, 20, 1, 20,
-		1, 21, 1, 21, 1, 22, 1, 22, 1, 23, 1, 23, 1, 24, 1, 24, 1, 25, 1, 25, 1,
-		26, 1, 26, 1, 27, 1, 27, 1, 28, 1, 28, 1, 29, 4, 29, 232, 8, 29, 11, 29,
-		12, 29, 233, 1, 29, 3, 29, 237, 8, 29, 1, 29, 1, 29, 3, 29, 241, 8, 29,
-		1, 29, 4, 29, 244, 8, 29, 11, 29, 12, 29, 245, 1, 30, 4, 30, 249, 8, 30,
-		11, 30, 12, 30, 250, 1, 30, 1, 30, 4, 30, 255, 8, 30, 11, 30, 12, 30, 256,
-		3, 30, 259, 8, 30, 1, 30, 1, 30, 1, 31, 1, 31, 1, 31, 1, 31, 5, 31, 267,
-		8, 31, 10, 31, 12, 31, 270, 9, 31, 1, 31, 1, 31, 1, 32, 4, 32, 275, 8,
-		32, 11, 32, 12, 32, 276, 1, 32, 5, 32, 280, 8, 32, 10, 32, 12, 32, 283,
-		9, 32, 1, 33, 3, 33, 286, 8, 33, 1, 33, 4, 33, 289, 8, 33, 11, 33, 12,
-		33, 290, 1, 33, 1, 33, 4, 33, 295, 8, 33, 11, 33, 12, 33, 296, 5, 33, 299,
-		8, 33, 10, 33, 12, 33, 302, 9, 33, 1, 34, 1, 34, 4, 34, 306, 8, 34, 11,
-		34, 12, 34, 307, 1, 34, 5, 34, 311, 8, 34, 10, 34, 12, 34, 314, 9, 34,
-		1, 35, 1, 35, 4, 35, 318, 8, 35, 11, 35, 12, 35, 319, 1, 35, 1, 35, 4,
-		35, 324, 8, 35, 11, 35, 12, 35, 325, 5, 35, 328, 8, 35, 10, 35, 12, 35,
-		331, 9, 35, 1, 36, 1, 36, 5, 36, 335, 8, 36, 10, 36, 12, 36, 338, 9, 36,
-		1, 36, 1, 36, 4, 36, 342, 8, 36, 11, 36, 12, 36, 343, 3, 36, 346, 8, 36,
-		2, 96, 110, 0, 37, 1, 1, 3, 2, 5, 3, 7, 4, 9, 5, 11, 6, 13, 7, 15, 8, 17,
-		9, 19, 10, 21, 11, 23, 12, 25, 13, 27, 14, 29, 15, 31, 16, 33, 17, 35,
-		18, 37, 19, 39, 20, 41, 21, 43, 22, 45, 23, 47, 24, 49, 25, 51, 26, 53,
-		27, 55, 28, 57, 29, 59, 30, 61, 31, 63, 32, 65, 33, 67, 34, 69, 35, 71,
-		36, 73, 37, 1, 0, 11, 3, 0, 9, 10, 13, 13, 32, 32, 2, 0, 10, 10, 13, 13,
-		1, 0, 48, 57, 1, 0, 32, 32, 3, 0, 10, 10, 13, 13, 34, 34, 1, 0, 97, 122,
-		2, 0, 95, 95, 97, 122, 3, 0, 48, 57, 95, 95, 97, 122, 5, 0, 45, 45, 48,
-		57, 65, 90, 95, 95, 97, 122, 1, 0, 65, 90, 2, 0, 48, 57, 65, 90, 374, 0,
-		1, 1, 0, 0, 0, 0, 3, 1, 0, 0, 0, 0, 5, 1, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0,
-		9, 1, 0, 0, 0, 0, 11, 1, 0, 0, 0, 0, 13, 1, 0, 0, 0, 0, 15, 1, 0, 0, 0,
-		0, 17, 1, 0, 0, 0, 0, 19, 1, 0, 0, 0, 0, 21, 1, 0, 0, 0, 0, 23, 1, 0, 0,
-		0, 0, 25, 1, 0, 0, 0, 0, 27, 1, 0, 0, 0, 0, 29, 1, 0, 0, 0, 0, 31, 1, 0,
-		0, 0, 0, 33, 1, 0, 0, 0, 0, 35, 1, 0, 0, 0, 0, 37, 1, 0, 0, 0, 0, 39, 1,
-		0, 0, 0, 0, 41, 1, 0, 0, 0, 0, 43, 1, 0, 0, 0, 0, 45, 1, 0, 0, 0, 0, 47,
-		1, 0, 0, 0, 0, 49, 1, 0, 0, 0, 0, 51, 1, 0, 0, 0, 0, 53, 1, 0, 0, 0, 0,
-		55, 1, 0, 0, 0, 0, 57, 1, 0, 0, 0, 0, 59, 1, 0, 0, 0, 0, 61, 1, 0, 0, 0,
-		0, 63, 1, 0, 0, 0, 0, 65, 1, 0, 0, 0, 0, 67, 1, 0, 0, 0, 0, 69, 1, 0, 0,
-		0, 0, 71, 1, 0, 0, 0, 0, 73, 1, 0, 0, 0, 1, 75, 1, 0, 0, 0, 3, 78, 1, 0,
-		0, 0, 5, 85, 1, 0, 0, 0, 7, 89, 1, 0, 0, 0, 9, 104, 1, 0, 0, 0, 11, 117,
-		1, 0, 0, 0, 13, 122, 1, 0, 0, 0, 15, 126, 1, 0, 0, 0, 17, 133, 1, 0, 0,
-		0, 19, 145, 1, 0, 0, 0, 21, 150, 1, 0, 0, 0, 23, 155, 1, 0, 0, 0, 25, 158,
-		1, 0, 0, 0, 27, 161, 1, 0, 0, 0, 29, 171, 1, 0, 0, 0, 31, 180, 1, 0, 0,
-		0, 33, 190, 1, 0, 0, 0, 35, 200, 1, 0, 0, 0, 37, 205, 1, 0, 0, 0, 39, 210,
-		1, 0, 0, 0, 41, 212, 1, 0, 0, 0, 43, 214, 1, 0, 0, 0, 45, 216, 1, 0, 0,
-		0, 47, 218, 1, 0, 0, 0, 49, 220, 1, 0, 0, 0, 51, 222, 1, 0, 0, 0, 53, 224,
-		1, 0, 0, 0, 55, 226, 1, 0, 0, 0, 57, 228, 1, 0, 0, 0, 59, 231, 1, 0, 0,
-		0, 61, 248, 1, 0, 0, 0, 63, 262, 1, 0, 0, 0, 65, 274, 1, 0, 0, 0, 67, 285,
-		1, 0, 0, 0, 69, 303, 1, 0, 0, 0, 71, 315, 1, 0, 0, 0, 73, 332, 1, 0, 0,
-		0, 75, 76, 5, 43, 0, 0, 76, 2, 1, 0, 0, 0, 77, 79, 7, 0, 0, 0, 78, 77,
-		1, 0, 0, 0, 79, 80, 1, 0, 0, 0, 80, 78, 1, 0, 0, 0, 80, 81, 1, 0, 0, 0,
-		81, 82, 1, 0, 0, 0, 82, 83, 6, 1, 0, 0, 83, 4, 1, 0, 0, 0, 84, 86, 7, 1,
-		0, 0, 85, 84, 1, 0, 0, 0, 86, 87, 1, 0, 0, 0, 87, 85, 1, 0, 0, 0, 87, 88,
-		1, 0, 0, 0, 88, 6, 1, 0, 0, 0, 89, 90, 5, 47, 0, 0, 90, 91, 5, 42, 0, 0,
-		91, 96, 1, 0, 0, 0, 92, 95, 3, 7, 3, 0, 93, 95, 9, 0, 0, 0, 94, 92, 1,
-		0, 0, 0, 94, 93, 1, 0, 0, 0, 95, 98, 1, 0, 0, 0, 96, 97, 1, 0, 0, 0, 96,
-		94, 1, 0, 0, 0, 97, 99, 1, 0, 0, 0, 98, 96, 1, 0, 0, 0, 99, 100, 5, 42,
-		0, 0, 100, 101, 5, 47, 0, 0, 101, 102, 1, 0, 0, 0, 102, 103, 6, 3, 0, 0,
-		103, 8, 1, 0, 0, 0, 104, 105, 5, 47, 0, 0, 105, 106, 5, 47, 0, 0, 106,
-		110, 1, 0, 0, 0, 107, 109, 9, 0, 0, 0, 108, 107, 1, 0, 0, 0, 109, 112,
-		1, 0, 0, 0, 110, 111, 1, 0, 0, 0, 110, 108, 1, 0, 0, 0, 111, 113, 1, 0,
-		0, 0, 112, 110, 1, 0, 0, 0, 113, 114, 3, 5, 2, 0, 114, 115, 1, 0, 0, 0,
-		115, 116, 6, 4, 0, 0, 116, 10, 1, 0, 0, 0, 117, 118, 5, 118, 0, 0, 118,
-		119, 5, 97, 0, 0, 119, 120, 5, 114, 0, 0, 120, 121, 5, 115, 0, 0, 121,
-		12, 1, 0, 0, 0, 122, 123, 5, 109, 0, 0, 123, 124, 5, 97, 0, 0, 124, 125,
-		5, 120, 0, 0, 125, 14, 1, 0, 0, 0, 126, 127, 5, 115, 0, 0, 127, 128, 5,
-		111, 0, 0, 128, 129, 5, 117, 0, 0, 129, 130, 5, 114, 0, 0, 130, 131, 5,
-		99, 0, 0, 131, 132, 5, 101, 0, 0, 132, 16, 1, 0, 0, 0, 133, 134, 5, 100,
-		0, 0, 134, 135, 5, 101, 0, 0, 135, 136, 5, 115, 0, 0, 136, 137, 5, 116,
-		0, 0, 137, 138, 5, 105, 0, 0, 138, 139, 5, 110, 0, 0, 139, 140, 5, 97,
-		0, 0, 140, 141, 5, 116, 0, 0, 141, 142, 5, 105, 0, 0, 142, 143, 5, 111,
-		0, 0, 143, 144, 5, 110, 0, 0, 144, 18, 1, 0, 0, 0, 145, 146, 5, 115, 0,
-		0, 146, 147, 5, 101, 0, 0, 147, 148, 5, 110, 0, 0, 148, 149, 5, 100, 0,
-		0, 149, 20, 1, 0, 0, 0, 150, 151, 5, 102, 0, 0, 151, 152, 5, 114, 0, 0,
-		152, 153, 5, 111, 0, 0, 153, 154, 5, 109, 0, 0, 154, 22, 1, 0, 0, 0, 155,
-		156, 5, 117, 0, 0, 156, 157, 5, 112, 0, 0, 157, 24, 1, 0, 0, 0, 158, 159,
-		5, 116, 0, 0, 159, 160, 5, 111, 0, 0, 160, 26, 1, 0, 0, 0, 161, 162, 5,
-		114, 0, 0, 162, 163, 5, 101, 0, 0, 163, 164, 5, 109, 0, 0, 164, 165, 5,
-		97, 0, 0, 165, 166, 5, 105, 0, 0, 166, 167, 5, 110, 0, 0, 167, 168, 5,
-		105, 0, 0, 168, 169, 5, 110, 0, 0, 169, 170, 5, 103, 0, 0, 170, 28, 1,
-		0, 0, 0, 171, 172, 5, 97, 0, 0, 172, 173, 5, 108, 0, 0, 173, 174, 5, 108,
-		0, 0, 174, 175, 5, 111, 0, 0, 175, 176, 5, 119, 0, 0, 176, 177, 5, 105,
-		0, 0, 177, 178, 5, 110, 0, 0, 178, 179, 5, 103, 0, 0, 179, 30, 1, 0, 0,
-		0, 180, 181, 5, 117, 0, 0, 181, 182, 5, 110, 0, 0, 182, 183, 5, 98, 0,
-		0, 183, 184, 5, 111, 0, 0, 184, 185, 5, 117, 0, 0, 185, 186, 5, 110, 0,
-		0, 186, 187, 5, 100, 0, 0, 187, 188, 5, 101, 0, 0, 188, 189, 5, 100, 0,
-		0, 189, 32, 1, 0, 0, 0, 190, 191, 5, 111, 0, 0, 191, 192, 5, 118, 0, 0,
-		192, 193, 5, 101, 0, 0, 193, 194, 5, 114, 0, 0, 194, 195, 5, 100, 0, 0,
-		195, 196, 5, 114, 0, 0, 196, 197, 5, 97, 0, 0, 197, 198, 5, 102, 0, 0,
-		198, 199, 5, 116, 0, 0, 199, 34, 1, 0, 0, 0, 200, 201, 5, 107, 0, 0, 201,
-		202, 5, 101, 0, 0, 202, 203, 5, 112, 0, 0, 203, 204, 5, 116, 0, 0, 204,
-		36, 1, 0, 0, 0, 205, 206, 5, 115, 0, 0, 206, 207, 5, 97, 0, 0, 207, 208,
-		5, 118, 0, 0, 208, 209, 5, 101, 0, 0, 209, 38, 1, 0, 0, 0, 210, 211, 5,
-		40, 0, 0, 211, 40, 1, 0, 0, 0, 212, 213, 5, 41, 0, 0, 213, 42, 1, 0, 0,
-		0, 214, 215, 5, 91, 0, 0, 215, 44, 1, 0, 0, 0, 216, 217, 5, 93, 0, 0, 217,
-		46, 1, 0, 0, 0, 218, 219, 5, 123, 0, 0, 219, 48, 1, 0, 0, 0, 220, 221,
-		5, 125, 0, 0, 221, 50, 1, 0, 0, 0, 222, 223, 5, 44, 0, 0, 223, 52, 1, 0,
-		0, 0, 224, 225, 5, 61, 0, 0, 225, 54, 1, 0, 0, 0, 226, 227, 5, 42, 0, 0,
-		227, 56, 1, 0, 0, 0, 228, 229, 5, 45, 0, 0, 229, 58, 1, 0, 0, 0, 230, 232,
-		7, 2, 0, 0, 231, 230, 1, 0, 0, 0, 232, 233, 1, 0, 0, 0, 233, 231, 1, 0,
-		0, 0, 233, 234, 1, 0, 0, 0, 234, 236, 1, 0, 0, 0, 235, 237, 7, 3, 0, 0,
-		236, 235, 1, 0, 0, 0, 236, 237, 1, 0, 0, 0, 237, 238, 1, 0, 0, 0, 238,
-		240, 5, 47, 0, 0, 239, 241, 7, 3, 0, 0, 240, 239, 1, 0, 0, 0, 240, 241,
-		1, 0, 0, 0, 241, 243, 1, 0, 0, 0, 242, 244, 7, 2, 0, 0, 243, 242, 1, 0,
-		0, 0, 244, 245, 1, 0, 0, 0, 245, 243, 1, 0, 0, 0, 245, 246, 1, 0, 0, 0,
-		246, 60, 1, 0, 0, 0, 247, 249, 7, 2, 0, 0, 248, 247, 1, 0, 0, 0, 249, 250,
-		1, 0, 0, 0, 250, 248, 1, 0, 0, 0, 250, 251, 1, 0, 0, 0, 251, 258, 1, 0,
-		0, 0, 252, 254, 5, 46, 0, 0, 253, 255, 7, 2, 0, 0, 254, 253, 1, 0, 0, 0,
-		255, 256, 1, 0, 0, 0, 256, 254, 1, 0, 0, 0, 256, 257, 1, 0, 0, 0, 257,
-		259, 1, 0, 0, 0, 258, 252, 1, 0, 0, 0, 258, 259, 1, 0, 0, 0, 259, 260,
-		1, 0, 0, 0, 260, 261, 5, 37, 0, 0, 261, 62, 1, 0, 0, 0, 262, 268, 5, 34,
-		0, 0, 263, 264, 5, 92, 0, 0, 264, 267, 5, 34, 0, 0, 265, 267, 8, 4, 0,
-		0, 266, 263, 1, 0, 0, 0, 266, 265, 1, 0, 0, 0, 267, 270, 1, 0, 0, 0, 268,
-		266, 1, 0, 0, 0, 268, 269, 1, 0, 0, 0, 269, 271, 1, 0, 0, 0, 270, 268,
-		1, 0, 0, 0, 271, 272, 5, 34, 0, 0, 272, 64, 1, 0, 0, 0, 273, 275, 7, 5,
-		0, 0, 274, 273, 1, 0, 0, 0, 275, 276, 1, 0, 0, 0, 276, 274, 1, 0, 0, 0,
-		276, 277, 1, 0, 0, 0, 277, 281, 1, 0, 0, 0, 278, 280, 7, 6, 0, 0, 279,
-		278, 1, 0, 0, 0, 280, 283, 1, 0, 0, 0, 281, 279, 1, 0, 0, 0, 281, 282,
-		1, 0, 0, 0, 282, 66, 1, 0, 0, 0, 283, 281, 1, 0, 0, 0, 284, 286, 3, 57,
-		28, 0, 285, 284, 1, 0, 0, 0, 285, 286, 1, 0, 0, 0, 286, 288, 1, 0, 0, 0,
-		287, 289, 7, 2, 0, 0, 288, 287, 1, 0, 0, 0, 289, 290, 1, 0, 0, 0, 290,
-		288, 1, 0, 0, 0, 290, 291, 1, 0, 0, 0, 291, 300, 1, 0, 0, 0, 292, 294,
-		5, 95, 0, 0, 293, 295, 7, 2, 0, 0, 294, 293, 1, 0, 0, 0, 295, 296, 1, 0,
-		0, 0, 296, 294, 1, 0, 0, 0, 296, 297, 1, 0, 0, 0, 297, 299, 1, 0, 0, 0,
-		298, 292, 1, 0, 0, 0, 299, 302, 1, 0, 0, 0, 300, 298, 1, 0, 0, 0, 300,
-		301, 1, 0, 0, 0, 301, 68, 1, 0, 0, 0, 302, 300, 1, 0, 0, 0, 303, 305, 5,
-		36, 0, 0, 304, 306, 7, 6, 0, 0, 305, 304, 1, 0, 0, 0, 306, 307, 1, 0, 0,
-		0, 307, 305, 1, 0, 0, 0, 307, 308, 1, 0, 0, 0, 308, 312, 1, 0, 0, 0, 309,
-		311, 7, 7, 0, 0, 310, 309, 1, 0, 0, 0, 311, 314, 1, 0, 0, 0, 312, 310,
-		1, 0, 0, 0, 312, 313, 1, 0, 0, 0, 313, 70, 1, 0, 0, 0, 314, 312, 1, 0,
-		0, 0, 315, 317, 5, 64, 0, 0, 316, 318, 7, 8, 0, 0, 317, 316, 1, 0, 0, 0,
-		318, 319, 1, 0, 0, 0, 319, 317, 1, 0, 0, 0, 319, 320, 1, 0, 0, 0, 320,
-		329, 1, 0, 0, 0, 321, 323, 5, 58, 0, 0, 322, 324, 7, 8, 0, 0, 323, 322,
-		1, 0, 0, 0, 324, 325, 1, 0, 0, 0, 325, 323, 1, 0, 0, 0, 325, 326, 1, 0,
-		0, 0, 326, 328, 1, 0, 0, 0, 327, 321, 1, 0, 0, 0, 328, 331, 1, 0, 0, 0,
-		329, 327, 1, 0, 0, 0, 329, 330, 1, 0, 0, 0, 330, 72, 1, 0, 0, 0, 331, 329,
-		1, 0, 0, 0, 332, 336, 7, 9, 0, 0, 333, 335, 7, 10, 0, 0, 334, 333, 1, 0,
-		0, 0, 335, 338, 1, 0, 0, 0, 336, 334, 1, 0, 0, 0, 336, 337, 1, 0, 0, 0,
-		337, 345, 1, 0, 0, 0, 338, 336, 1, 0, 0, 0, 339, 341, 5, 47, 0, 0, 340,
-		342, 7, 2, 0, 0, 341, 340, 1, 0, 0, 0, 342, 343, 1, 0, 0, 0, 343, 341,
-		1, 0, 0, 0, 343, 344, 1, 0, 0, 0, 344, 346, 1, 0, 0, 0, 345, 339, 1, 0,
-		0, 0, 345, 346, 1, 0, 0, 0, 346, 74, 1, 0, 0, 0, 29, 0, 80, 87, 94, 96,
-		110, 233, 236, 240, 245, 250, 256, 258, 266, 268, 276, 281, 285, 290, 296,
-		300, 307, 312, 319, 325, 329, 336, 343, 345, 1, 6, 0, 0,
+		7, 36, 2, 37, 7, 37, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+		2, 4, 2, 87, 8, 2, 11, 2, 12, 2, 88, 1, 2, 1, 2, 1, 3, 4, 3, 94, 8, 3,
+		11, 3, 12, 3, 95, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 5, 4, 103, 8, 4, 10, 4,
+		12, 4, 106, 9, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 5, 1, 5, 1, 5, 1, 5,
+		5, 5, 117, 8, 5, 10, 5, 12, 5, 120, 9, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 6,
+		1, 6, 1, 6, 1, 6, 1, 6, 1, 7, 1, 7, 1, 7, 1, 7, 1, 8, 1, 8, 1, 8, 1, 8,
+		1, 8, 1, 8, 1, 8, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9,
+		1, 9, 1, 9, 1, 9, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 11, 1, 11, 1, 11,
+		1, 11, 1, 11, 1, 12, 1, 12, 1, 12, 1, 13, 1, 13, 1, 13, 1, 14, 1, 14, 1,
+		14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 15, 1, 15, 1, 15,
+		1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 16, 1, 16, 1, 16, 1, 16, 1,
+		16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 17, 1, 17, 1, 17, 1, 17, 1, 17,
+		1, 17, 1, 17, 1, 17, 1, 17, 1, 17, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1,
+		19, 1, 19, 1, 19, 1, 19, 1, 19, 1, 20, 1, 20, 1, 21, 1, 21, 1, 22, 1, 22,
+		1, 23, 1, 23, 1, 24, 1, 24, 1, 25, 1, 25, 1, 26, 1, 26, 1, 27, 1, 27, 1,
+		28, 1, 28, 1, 29, 1, 29, 1, 30, 4, 30, 240, 8, 30, 11, 30, 12, 30, 241,
+		1, 30, 3, 30, 245, 8, 30, 1, 30, 1, 30, 3, 30, 249, 8, 30, 1, 30, 4, 30,
+		252, 8, 30, 11, 30, 12, 30, 253, 1, 31, 4, 31, 257, 8, 31, 11, 31, 12,
+		31, 258, 1, 31, 1, 31, 4, 31, 263, 8, 31, 11, 31, 12, 31, 264, 3, 31, 267,
+		8, 31, 1, 31, 1, 31, 1, 32, 1, 32, 1, 32, 1, 32, 5, 32, 275, 8, 32, 10,
+		32, 12, 32, 278, 9, 32, 1, 32, 1, 32, 1, 33, 4, 33, 283, 8, 33, 11, 33,
+		12, 33, 284, 1, 33, 5, 33, 288, 8, 33, 10, 33, 12, 33, 291, 9, 33, 1, 34,
+		3, 34, 294, 8, 34, 1, 34, 4, 34, 297, 8, 34, 11, 34, 12, 34, 298, 1, 34,
+		1, 34, 4, 34, 303, 8, 34, 11, 34, 12, 34, 304, 5, 34, 307, 8, 34, 10, 34,
+		12, 34, 310, 9, 34, 1, 35, 1, 35, 4, 35, 314, 8, 35, 11, 35, 12, 35, 315,
+		1, 35, 5, 35, 319, 8, 35, 10, 35, 12, 35, 322, 9, 35, 1, 36, 1, 36, 4,
+		36, 326, 8, 36, 11, 36, 12, 36, 327, 1, 36, 1, 36, 4, 36, 332, 8, 36, 11,
+		36, 12, 36, 333, 5, 36, 336, 8, 36, 10, 36, 12, 36, 339, 9, 36, 1, 37,
+		1, 37, 5, 37, 343, 8, 37, 10, 37, 12, 37, 346, 9, 37, 1, 37, 1, 37, 4,
+		37, 350, 8, 37, 11, 37, 12, 37, 351, 3, 37, 354, 8, 37, 2, 104, 118, 0,
+		38, 1, 1, 3, 2, 5, 3, 7, 4, 9, 5, 11, 6, 13, 7, 15, 8, 17, 9, 19, 10, 21,
+		11, 23, 12, 25, 13, 27, 14, 29, 15, 31, 16, 33, 17, 35, 18, 37, 19, 39,
+		20, 41, 21, 43, 22, 45, 23, 47, 24, 49, 25, 51, 26, 53, 27, 55, 28, 57,
+		29, 59, 30, 61, 31, 63, 32, 65, 33, 67, 34, 69, 35, 71, 36, 73, 37, 75,
+		38, 1, 0, 11, 3, 0, 9, 10, 13, 13, 32, 32, 2, 0, 10, 10, 13, 13, 1, 0,
+		48, 57, 1, 0, 32, 32, 3, 0, 10, 10, 13, 13, 34, 34, 1, 0, 97, 122, 2, 0,
+		95, 95, 97, 122, 3, 0, 48, 57, 95, 95, 97, 122, 5, 0, 45, 45, 48, 57, 65,
+		90, 95, 95, 97, 122, 1, 0, 65, 90, 2, 0, 48, 57, 65, 90, 382, 0, 1, 1,
+		0, 0, 0, 0, 3, 1, 0, 0, 0, 0, 5, 1, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 9, 1,
+		0, 0, 0, 0, 11, 1, 0, 0, 0, 0, 13, 1, 0, 0, 0, 0, 15, 1, 0, 0, 0, 0, 17,
+		1, 0, 0, 0, 0, 19, 1, 0, 0, 0, 0, 21, 1, 0, 0, 0, 0, 23, 1, 0, 0, 0, 0,
+		25, 1, 0, 0, 0, 0, 27, 1, 0, 0, 0, 0, 29, 1, 0, 0, 0, 0, 31, 1, 0, 0, 0,
+		0, 33, 1, 0, 0, 0, 0, 35, 1, 0, 0, 0, 0, 37, 1, 0, 0, 0, 0, 39, 1, 0, 0,
+		0, 0, 41, 1, 0, 0, 0, 0, 43, 1, 0, 0, 0, 0, 45, 1, 0, 0, 0, 0, 47, 1, 0,
+		0, 0, 0, 49, 1, 0, 0, 0, 0, 51, 1, 0, 0, 0, 0, 53, 1, 0, 0, 0, 0, 55, 1,
+		0, 0, 0, 0, 57, 1, 0, 0, 0, 0, 59, 1, 0, 0, 0, 0, 61, 1, 0, 0, 0, 0, 63,
+		1, 0, 0, 0, 0, 65, 1, 0, 0, 0, 0, 67, 1, 0, 0, 0, 0, 69, 1, 0, 0, 0, 0,
+		71, 1, 0, 0, 0, 0, 73, 1, 0, 0, 0, 0, 75, 1, 0, 0, 0, 1, 77, 1, 0, 0, 0,
+		3, 79, 1, 0, 0, 0, 5, 86, 1, 0, 0, 0, 7, 93, 1, 0, 0, 0, 9, 97, 1, 0, 0,
+		0, 11, 112, 1, 0, 0, 0, 13, 125, 1, 0, 0, 0, 15, 130, 1, 0, 0, 0, 17, 134,
+		1, 0, 0, 0, 19, 141, 1, 0, 0, 0, 21, 153, 1, 0, 0, 0, 23, 158, 1, 0, 0,
+		0, 25, 163, 1, 0, 0, 0, 27, 166, 1, 0, 0, 0, 29, 169, 1, 0, 0, 0, 31, 179,
+		1, 0, 0, 0, 33, 188, 1, 0, 0, 0, 35, 198, 1, 0, 0, 0, 37, 208, 1, 0, 0,
+		0, 39, 213, 1, 0, 0, 0, 41, 218, 1, 0, 0, 0, 43, 220, 1, 0, 0, 0, 45, 222,
+		1, 0, 0, 0, 47, 224, 1, 0, 0, 0, 49, 226, 1, 0, 0, 0, 51, 228, 1, 0, 0,
+		0, 53, 230, 1, 0, 0, 0, 55, 232, 1, 0, 0, 0, 57, 234, 1, 0, 0, 0, 59, 236,
+		1, 0, 0, 0, 61, 239, 1, 0, 0, 0, 63, 256, 1, 0, 0, 0, 65, 270, 1, 0, 0,
+		0, 67, 282, 1, 0, 0, 0, 69, 293, 1, 0, 0, 0, 71, 311, 1, 0, 0, 0, 73, 323,
+		1, 0, 0, 0, 75, 340, 1, 0, 0, 0, 77, 78, 5, 43, 0, 0, 78, 2, 1, 0, 0, 0,
+		79, 80, 5, 111, 0, 0, 80, 81, 5, 110, 0, 0, 81, 82, 5, 101, 0, 0, 82, 83,
+		5, 111, 0, 0, 83, 84, 5, 102, 0, 0, 84, 4, 1, 0, 0, 0, 85, 87, 7, 0, 0,
+		0, 86, 85, 1, 0, 0, 0, 87, 88, 1, 0, 0, 0, 88, 86, 1, 0, 0, 0, 88, 89,
+		1, 0, 0, 0, 89, 90, 1, 0, 0, 0, 90, 91, 6, 2, 0, 0, 91, 6, 1, 0, 0, 0,
+		92, 94, 7, 1, 0, 0, 93, 92, 1, 0, 0, 0, 94, 95, 1, 0, 0, 0, 95, 93, 1,
+		0, 0, 0, 95, 96, 1, 0, 0, 0, 96, 8, 1, 0, 0, 0, 97, 98, 5, 47, 0, 0, 98,
+		99, 5, 42, 0, 0, 99, 104, 1, 0, 0, 0, 100, 103, 3, 9, 4, 0, 101, 103, 9,
+		0, 0, 0, 102, 100, 1, 0, 0, 0, 102, 101, 1, 0, 0, 0, 103, 106, 1, 0, 0,
+		0, 104, 105, 1, 0, 0, 0, 104, 102, 1, 0, 0, 0, 105, 107, 1, 0, 0, 0, 106,
+		104, 1, 0, 0, 0, 107, 108, 5, 42, 0, 0, 108, 109, 5, 47, 0, 0, 109, 110,
+		1, 0, 0, 0, 110, 111, 6, 4, 0, 0, 111, 10, 1, 0, 0, 0, 112, 113, 5, 47,
+		0, 0, 113, 114, 5, 47, 0, 0, 114, 118, 1, 0, 0, 0, 115, 117, 9, 0, 0, 0,
+		116, 115, 1, 0, 0, 0, 117, 120, 1, 0, 0, 0, 118, 119, 1, 0, 0, 0, 118,
+		116, 1, 0, 0, 0, 119, 121, 1, 0, 0, 0, 120, 118, 1, 0, 0, 0, 121, 122,
+		3, 7, 3, 0, 122, 123, 1, 0, 0, 0, 123, 124, 6, 5, 0, 0, 124, 12, 1, 0,
+		0, 0, 125, 126, 5, 118, 0, 0, 126, 127, 5, 97, 0, 0, 127, 128, 5, 114,
+		0, 0, 128, 129, 5, 115, 0, 0, 129, 14, 1, 0, 0, 0, 130, 131, 5, 109, 0,
+		0, 131, 132, 5, 97, 0, 0, 132, 133, 5, 120, 0, 0, 133, 16, 1, 0, 0, 0,
+		134, 135, 5, 115, 0, 0, 135, 136, 5, 111, 0, 0, 136, 137, 5, 117, 0, 0,
+		137, 138, 5, 114, 0, 0, 138, 139, 5, 99, 0, 0, 139, 140, 5, 101, 0, 0,
+		140, 18, 1, 0, 0, 0, 141, 142, 5, 100, 0, 0, 142, 143, 5, 101, 0, 0, 143,
+		144, 5, 115, 0, 0, 144, 145, 5, 116, 0, 0, 145, 146, 5, 105, 0, 0, 146,
+		147, 5, 110, 0, 0, 147, 148, 5, 97, 0, 0, 148, 149, 5, 116, 0, 0, 149,
+		150, 5, 105, 0, 0, 150, 151, 5, 111, 0, 0, 151, 152, 5, 110, 0, 0, 152,
+		20, 1, 0, 0, 0, 153, 154, 5, 115, 0, 0, 154, 155, 5, 101, 0, 0, 155, 156,
+		5, 110, 0, 0, 156, 157, 5, 100, 0, 0, 157, 22, 1, 0, 0, 0, 158, 159, 5,
+		102, 0, 0, 159, 160, 5, 114, 0, 0, 160, 161, 5, 111, 0, 0, 161, 162, 5,
+		109, 0, 0, 162, 24, 1, 0, 0, 0, 163, 164, 5, 117, 0, 0, 164, 165, 5, 112,
+		0, 0, 165, 26, 1, 0, 0, 0, 166, 167, 5, 116, 0, 0, 167, 168, 5, 111, 0,
+		0, 168, 28, 1, 0, 0, 0, 169, 170, 5, 114, 0, 0, 170, 171, 5, 101, 0, 0,
+		171, 172, 5, 109, 0, 0, 172, 173, 5, 97, 0, 0, 173, 174, 5, 105, 0, 0,
+		174, 175, 5, 110, 0, 0, 175, 176, 5, 105, 0, 0, 176, 177, 5, 110, 0, 0,
+		177, 178, 5, 103, 0, 0, 178, 30, 1, 0, 0, 0, 179, 180, 5, 97, 0, 0, 180,
+		181, 5, 108, 0, 0, 181, 182, 5, 108, 0, 0, 182, 183, 5, 111, 0, 0, 183,
+		184, 5, 119, 0, 0, 184, 185, 5, 105, 0, 0, 185, 186, 5, 110, 0, 0, 186,
+		187, 5, 103, 0, 0, 187, 32, 1, 0, 0, 0, 188, 189, 5, 117, 0, 0, 189, 190,
+		5, 110, 0, 0, 190, 191, 5, 98, 0, 0, 191, 192, 5, 111, 0, 0, 192, 193,
+		5, 117, 0, 0, 193, 194, 5, 110, 0, 0, 194, 195, 5, 100, 0, 0, 195, 196,
+		5, 101, 0, 0, 196, 197, 5, 100, 0, 0, 197, 34, 1, 0, 0, 0, 198, 199, 5,
+		111, 0, 0, 199, 200, 5, 118, 0, 0, 200, 201, 5, 101, 0, 0, 201, 202, 5,
+		114, 0, 0, 202, 203, 5, 100, 0, 0, 203, 204, 5, 114, 0, 0, 204, 205, 5,
+		97, 0, 0, 205, 206, 5, 102, 0, 0, 206, 207, 5, 116, 0, 0, 207, 36, 1, 0,
+		0, 0, 208, 209, 5, 107, 0, 0, 209, 210, 5, 101, 0, 0, 210, 211, 5, 112,
+		0, 0, 211, 212, 5, 116, 0, 0, 212, 38, 1, 0, 0, 0, 213, 214, 5, 115, 0,
+		0, 214, 215, 5, 97, 0, 0, 215, 216, 5, 118, 0, 0, 216, 217, 5, 101, 0,
+		0, 217, 40, 1, 0, 0, 0, 218, 219, 5, 40, 0, 0, 219, 42, 1, 0, 0, 0, 220,
+		221, 5, 41, 0, 0, 221, 44, 1, 0, 0, 0, 222, 223, 5, 91, 0, 0, 223, 46,
+		1, 0, 0, 0, 224, 225, 5, 93, 0, 0, 225, 48, 1, 0, 0, 0, 226, 227, 5, 123,
+		0, 0, 227, 50, 1, 0, 0, 0, 228, 229, 5, 125, 0, 0, 229, 52, 1, 0, 0, 0,
+		230, 231, 5, 44, 0, 0, 231, 54, 1, 0, 0, 0, 232, 233, 5, 61, 0, 0, 233,
+		56, 1, 0, 0, 0, 234, 235, 5, 42, 0, 0, 235, 58, 1, 0, 0, 0, 236, 237, 5,
+		45, 0, 0, 237, 60, 1, 0, 0, 0, 238, 240, 7, 2, 0, 0, 239, 238, 1, 0, 0,
+		0, 240, 241, 1, 0, 0, 0, 241, 239, 1, 0, 0, 0, 241, 242, 1, 0, 0, 0, 242,
+		244, 1, 0, 0, 0, 243, 245, 7, 3, 0, 0, 244, 243, 1, 0, 0, 0, 244, 245,
+		1, 0, 0, 0, 245, 246, 1, 0, 0, 0, 246, 248, 5, 47, 0, 0, 247, 249, 7, 3,
+		0, 0, 248, 247, 1, 0, 0, 0, 248, 249, 1, 0, 0, 0, 249, 251, 1, 0, 0, 0,
+		250, 252, 7, 2, 0, 0, 251, 250, 1, 0, 0, 0, 252, 253, 1, 0, 0, 0, 253,
+		251, 1, 0, 0, 0, 253, 254, 1, 0, 0, 0, 254, 62, 1, 0, 0, 0, 255, 257, 7,
+		2, 0, 0, 256, 255, 1, 0, 0, 0, 257, 258, 1, 0, 0, 0, 258, 256, 1, 0, 0,
+		0, 258, 259, 1, 0, 0, 0, 259, 266, 1, 0, 0, 0, 260, 262, 5, 46, 0, 0, 261,
+		263, 7, 2, 0, 0, 262, 261, 1, 0, 0, 0, 263, 264, 1, 0, 0, 0, 264, 262,
+		1, 0, 0, 0, 264, 265, 1, 0, 0, 0, 265, 267, 1, 0, 0, 0, 266, 260, 1, 0,
+		0, 0, 266, 267, 1, 0, 0, 0, 267, 268, 1, 0, 0, 0, 268, 269, 5, 37, 0, 0,
+		269, 64, 1, 0, 0, 0, 270, 276, 5, 34, 0, 0, 271, 272, 5, 92, 0, 0, 272,
+		275, 5, 34, 0, 0, 273, 275, 8, 4, 0, 0, 274, 271, 1, 0, 0, 0, 274, 273,
+		1, 0, 0, 0, 275, 278, 1, 0, 0, 0, 276, 274, 1, 0, 0, 0, 276, 277, 1, 0,
+		0, 0, 277, 279, 1, 0, 0, 0, 278, 276, 1, 0, 0, 0, 279, 280, 5, 34, 0, 0,
+		280, 66, 1, 0, 0, 0, 281, 283, 7, 5, 0, 0, 282, 281, 1, 0, 0, 0, 283, 284,
+		1, 0, 0, 0, 284, 282, 1, 0, 0, 0, 284, 285, 1, 0, 0, 0, 285, 289, 1, 0,
+		0, 0, 286, 288, 7, 6, 0, 0, 287, 286, 1, 0, 0, 0, 288, 291, 1, 0, 0, 0,
+		289, 287, 1, 0, 0, 0, 289, 290, 1, 0, 0, 0, 290, 68, 1, 0, 0, 0, 291, 289,
+		1, 0, 0, 0, 292, 294, 3, 59, 29, 0, 293, 292, 1, 0, 0, 0, 293, 294, 1,
+		0, 0, 0, 294, 296, 1, 0, 0, 0, 295, 297, 7, 2, 0, 0, 296, 295, 1, 0, 0,
+		0, 297, 298, 1, 0, 0, 0, 298, 296, 1, 0, 0, 0, 298, 299, 1, 0, 0, 0, 299,
+		308, 1, 0, 0, 0, 300, 302, 5, 95, 0, 0, 301, 303, 7, 2, 0, 0, 302, 301,
+		1, 0, 0, 0, 303, 304, 1, 0, 0, 0, 304, 302, 1, 0, 0, 0, 304, 305, 1, 0,
+		0, 0, 305, 307, 1, 0, 0, 0, 306, 300, 1, 0, 0, 0, 307, 310, 1, 0, 0, 0,
+		308, 306, 1, 0, 0, 0, 308, 309, 1, 0, 0, 0, 309, 70, 1, 0, 0, 0, 310, 308,
+		1, 0, 0, 0, 311, 313, 5, 36, 0, 0, 312, 314, 7, 6, 0, 0, 313, 312, 1, 0,
+		0, 0, 314, 315, 1, 0, 0, 0, 315, 313, 1, 0, 0, 0, 315, 316, 1, 0, 0, 0,
+		316, 320, 1, 0, 0, 0, 317, 319, 7, 7, 0, 0, 318, 317, 1, 0, 0, 0, 319,
+		322, 1, 0, 0, 0, 320, 318, 1, 0, 0, 0, 320, 321, 1, 0, 0, 0, 321, 72, 1,
+		0, 0, 0, 322, 320, 1, 0, 0, 0, 323, 325, 5, 64, 0, 0, 324, 326, 7, 8, 0,
+		0, 325, 324, 1, 0, 0, 0, 326, 327, 1, 0, 0, 0, 327, 325, 1, 0, 0, 0, 327,
+		328, 1, 0, 0, 0, 328, 337, 1, 0, 0, 0, 329, 331, 5, 58, 0, 0, 330, 332,
+		7, 8, 0, 0, 331, 330, 1, 0, 0, 0, 332, 333, 1, 0, 0, 0, 333, 331, 1, 0,
+		0, 0, 333, 334, 1, 0, 0, 0, 334, 336, 1, 0, 0, 0, 335, 329, 1, 0, 0, 0,
+		336, 339, 1, 0, 0, 0, 337, 335, 1, 0, 0, 0, 337, 338, 1, 0, 0, 0, 338,
+		74, 1, 0, 0, 0, 339, 337, 1, 0, 0, 0, 340, 344, 7, 9, 0, 0, 341, 343, 7,
+		10, 0, 0, 342, 341, 1, 0, 0, 0, 343, 346, 1, 0, 0, 0, 344, 342, 1, 0, 0,
+		0, 344, 345, 1, 0, 0, 0, 345, 353, 1, 0, 0, 0, 346, 344, 1, 0, 0, 0, 347,
+		349, 5, 47, 0, 0, 348, 350, 7, 2, 0, 0, 349, 348, 1, 0, 0, 0, 350, 351,
+		1, 0, 0, 0, 351, 349, 1, 0, 0, 0, 351, 352, 1, 0, 0, 0, 352, 354, 1, 0,
+		0, 0, 353, 347, 1, 0, 0, 0, 353, 354, 1, 0, 0, 0, 354, 76, 1, 0, 0, 0,
+		29, 0, 88, 95, 102, 104, 118, 241, 244, 248, 253, 258, 264, 266, 274, 276,
+		284, 289, 293, 298, 304, 308, 315, 320, 327, 333, 337, 344, 351, 353, 1,
+		6, 0, 0,
 	}
 	deserializer := antlr.NewATNDeserializer(nil)
 	staticData.atn = deserializer.Deserialize(staticData.serializedATN)
@@ -266,40 +270,41 @@ func NewNumscriptLexer(input antlr.CharStream) *NumscriptLexer {
 // NumscriptLexer tokens.
 const (
 	NumscriptLexerT__0                       = 1
-	NumscriptLexerWS                         = 2
-	NumscriptLexerNEWLINE                    = 3
-	NumscriptLexerMULTILINE_COMMENT          = 4
-	NumscriptLexerLINE_COMMENT               = 5
-	NumscriptLexerVARS                       = 6
-	NumscriptLexerMAX                        = 7
-	NumscriptLexerSOURCE                     = 8
-	NumscriptLexerDESTINATION                = 9
-	NumscriptLexerSEND                       = 10
-	NumscriptLexerFROM                       = 11
-	NumscriptLexerUP                         = 12
-	NumscriptLexerTO                         = 13
-	NumscriptLexerREMAINING                  = 14
-	NumscriptLexerALLOWING                   = 15
-	NumscriptLexerUNBOUNDED                  = 16
-	NumscriptLexerOVERDRAFT                  = 17
-	NumscriptLexerKEPT                       = 18
-	NumscriptLexerSAVE                       = 19
-	NumscriptLexerLPARENS                    = 20
-	NumscriptLexerRPARENS                    = 21
-	NumscriptLexerLBRACKET                   = 22
-	NumscriptLexerRBRACKET                   = 23
-	NumscriptLexerLBRACE                     = 24
-	NumscriptLexerRBRACE                     = 25
-	NumscriptLexerCOMMA                      = 26
-	NumscriptLexerEQ                         = 27
-	NumscriptLexerSTAR                       = 28
-	NumscriptLexerMINUS                      = 29
-	NumscriptLexerRATIO_PORTION_LITERAL      = 30
-	NumscriptLexerPERCENTAGE_PORTION_LITERAL = 31
-	NumscriptLexerSTRING                     = 32
-	NumscriptLexerIDENTIFIER                 = 33
-	NumscriptLexerNUMBER                     = 34
-	NumscriptLexerVARIABLE_NAME              = 35
-	NumscriptLexerACCOUNT                    = 36
-	NumscriptLexerASSET                      = 37
+	NumscriptLexerT__1                       = 2
+	NumscriptLexerWS                         = 3
+	NumscriptLexerNEWLINE                    = 4
+	NumscriptLexerMULTILINE_COMMENT          = 5
+	NumscriptLexerLINE_COMMENT               = 6
+	NumscriptLexerVARS                       = 7
+	NumscriptLexerMAX                        = 8
+	NumscriptLexerSOURCE                     = 9
+	NumscriptLexerDESTINATION                = 10
+	NumscriptLexerSEND                       = 11
+	NumscriptLexerFROM                       = 12
+	NumscriptLexerUP                         = 13
+	NumscriptLexerTO                         = 14
+	NumscriptLexerREMAINING                  = 15
+	NumscriptLexerALLOWING                   = 16
+	NumscriptLexerUNBOUNDED                  = 17
+	NumscriptLexerOVERDRAFT                  = 18
+	NumscriptLexerKEPT                       = 19
+	NumscriptLexerSAVE                       = 20
+	NumscriptLexerLPARENS                    = 21
+	NumscriptLexerRPARENS                    = 22
+	NumscriptLexerLBRACKET                   = 23
+	NumscriptLexerRBRACKET                   = 24
+	NumscriptLexerLBRACE                     = 25
+	NumscriptLexerRBRACE                     = 26
+	NumscriptLexerCOMMA                      = 27
+	NumscriptLexerEQ                         = 28
+	NumscriptLexerSTAR                       = 29
+	NumscriptLexerMINUS                      = 30
+	NumscriptLexerRATIO_PORTION_LITERAL      = 31
+	NumscriptLexerPERCENTAGE_PORTION_LITERAL = 32
+	NumscriptLexerSTRING                     = 33
+	NumscriptLexerIDENTIFIER                 = 34
+	NumscriptLexerNUMBER                     = 35
+	NumscriptLexerVARIABLE_NAME              = 36
+	NumscriptLexerACCOUNT                    = 37
+	NumscriptLexerASSET                      = 38
 )
diff --git a/internal/parser/antlr/numscript_listener.go b/internal/parser/antlr/numscript_listener.go
index 7704c11..c6e939a 100644
--- a/internal/parser/antlr/numscript_listener.go
+++ b/internal/parser/antlr/numscript_listener.go
@@ -89,6 +89,9 @@ type NumscriptListener interface {
 	// EnterSrcInorder is called when entering the srcInorder production.
 	EnterSrcInorder(c *SrcInorderContext)
 
+	// EnterSrcOneof is called when entering the srcOneof production.
+	EnterSrcOneof(c *SrcOneofContext)
+
 	// EnterSrcCapped is called when entering the srcCapped production.
 	EnterSrcCapped(c *SrcCappedContext)
 
@@ -113,6 +116,9 @@ type NumscriptListener interface {
 	// EnterDestInorder is called when entering the destInorder production.
 	EnterDestInorder(c *DestInorderContext)
 
+	// EnterDestOneof is called when entering the destOneof production.
+	EnterDestOneof(c *DestOneofContext)
+
 	// EnterAllotmentClauseDest is called when entering the allotmentClauseDest production.
 	EnterAllotmentClauseDest(c *AllotmentClauseDestContext)
 
@@ -212,6 +218,9 @@ type NumscriptListener interface {
 	// ExitSrcInorder is called when exiting the srcInorder production.
 	ExitSrcInorder(c *SrcInorderContext)
 
+	// ExitSrcOneof is called when exiting the srcOneof production.
+	ExitSrcOneof(c *SrcOneofContext)
+
 	// ExitSrcCapped is called when exiting the srcCapped production.
 	ExitSrcCapped(c *SrcCappedContext)
 
@@ -236,6 +245,9 @@ type NumscriptListener interface {
 	// ExitDestInorder is called when exiting the destInorder production.
 	ExitDestInorder(c *DestInorderContext)
 
+	// ExitDestOneof is called when exiting the destOneof production.
+	ExitDestOneof(c *DestOneofContext)
+
 	// ExitAllotmentClauseDest is called when exiting the allotmentClauseDest production.
 	ExitAllotmentClauseDest(c *AllotmentClauseDestContext)
 
diff --git a/internal/parser/antlr/numscript_parser.go b/internal/parser/antlr/numscript_parser.go
index 6433fc2..97b94cc 100644
--- a/internal/parser/antlr/numscript_parser.go
+++ b/internal/parser/antlr/numscript_parser.go
@@ -33,13 +33,13 @@ var NumscriptParserStaticData struct {
 func numscriptParserInit() {
 	staticData := &NumscriptParserStaticData
 	staticData.LiteralNames = []string{
-		"", "'+'", "", "", "", "", "'vars'", "'max'", "'source'", "'destination'",
-		"'send'", "'from'", "'up'", "'to'", "'remaining'", "'allowing'", "'unbounded'",
-		"'overdraft'", "'kept'", "'save'", "'('", "')'", "'['", "']'", "'{'",
-		"'}'", "','", "'='", "'*'", "'-'",
+		"", "'+'", "'oneof'", "", "", "", "", "'vars'", "'max'", "'source'",
+		"'destination'", "'send'", "'from'", "'up'", "'to'", "'remaining'",
+		"'allowing'", "'unbounded'", "'overdraft'", "'kept'", "'save'", "'('",
+		"')'", "'['", "']'", "'{'", "'}'", "','", "'='", "'*'", "'-'",
 	}
 	staticData.SymbolicNames = []string{
-		"", "", "WS", "NEWLINE", "MULTILINE_COMMENT", "LINE_COMMENT", "VARS",
+		"", "", "", "WS", "NEWLINE", "MULTILINE_COMMENT", "LINE_COMMENT", "VARS",
 		"MAX", "SOURCE", "DESTINATION", "SEND", "FROM", "UP", "TO", "REMAINING",
 		"ALLOWING", "UNBOUNDED", "OVERDRAFT", "KEPT", "SAVE", "LPARENS", "RPARENS",
 		"LBRACKET", "RBRACKET", "LBRACE", "RBRACE", "COMMA", "EQ", "STAR", "MINUS",
@@ -54,7 +54,7 @@ func numscriptParserInit() {
 	}
 	staticData.PredictionContextCache = antlr.NewPredictionContextCache()
 	staticData.serializedATN = []int32{
-		4, 1, 37, 221, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7,
+		4, 1, 38, 242, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7,
 		4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2, 10, 7,
 		10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15, 7, 15,
 		2, 16, 7, 16, 2, 17, 7, 17, 2, 18, 7, 18, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
@@ -69,86 +69,97 @@ func numscriptParserInit() {
 		1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1,
 		11, 1, 11, 4, 11, 139, 8, 11, 11, 11, 12, 11, 140, 1, 11, 1, 11, 1, 11,
 		1, 11, 5, 11, 147, 8, 11, 10, 11, 12, 11, 150, 9, 11, 1, 11, 1, 11, 1,
-		11, 1, 11, 1, 11, 1, 11, 3, 11, 158, 8, 11, 1, 12, 1, 12, 1, 12, 1, 12,
-		1, 13, 1, 13, 1, 13, 3, 13, 167, 8, 13, 1, 14, 1, 14, 1, 14, 1, 14, 1,
-		15, 1, 15, 1, 15, 4, 15, 176, 8, 15, 11, 15, 12, 15, 177, 1, 15, 1, 15,
-		1, 15, 1, 15, 5, 15, 184, 8, 15, 10, 15, 12, 15, 187, 9, 15, 1, 15, 1,
-		15, 1, 15, 1, 15, 3, 15, 193, 8, 15, 1, 16, 1, 16, 1, 16, 1, 17, 1, 17,
-		3, 17, 200, 8, 17, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1,
-		18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 3, 18,
-		219, 8, 18, 1, 18, 0, 1, 4, 19, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20,
-		22, 24, 26, 28, 30, 32, 34, 36, 0, 2, 2, 0, 1, 1, 29, 29, 2, 0, 17, 17,
-		33, 33, 233, 0, 38, 1, 0, 0, 0, 2, 45, 1, 0, 0, 0, 4, 59, 1, 0, 0, 0, 6,
-		69, 1, 0, 0, 0, 8, 77, 1, 0, 0, 0, 10, 84, 1, 0, 0, 0, 12, 87, 1, 0, 0,
-		0, 14, 92, 1, 0, 0, 0, 16, 103, 1, 0, 0, 0, 18, 113, 1, 0, 0, 0, 20, 121,
-		1, 0, 0, 0, 22, 157, 1, 0, 0, 0, 24, 159, 1, 0, 0, 0, 26, 166, 1, 0, 0,
-		0, 28, 168, 1, 0, 0, 0, 30, 192, 1, 0, 0, 0, 32, 194, 1, 0, 0, 0, 34, 199,
-		1, 0, 0, 0, 36, 218, 1, 0, 0, 0, 38, 39, 5, 22, 0, 0, 39, 40, 3, 4, 2,
-		0, 40, 41, 3, 4, 2, 0, 41, 42, 5, 23, 0, 0, 42, 1, 1, 0, 0, 0, 43, 46,
-		5, 30, 0, 0, 44, 46, 5, 31, 0, 0, 45, 43, 1, 0, 0, 0, 45, 44, 1, 0, 0,
-		0, 46, 3, 1, 0, 0, 0, 47, 48, 6, 2, -1, 0, 48, 60, 5, 35, 0, 0, 49, 60,
-		5, 37, 0, 0, 50, 60, 5, 32, 0, 0, 51, 60, 5, 36, 0, 0, 52, 60, 5, 34, 0,
-		0, 53, 60, 3, 0, 0, 0, 54, 60, 3, 2, 1, 0, 55, 56, 5, 20, 0, 0, 56, 57,
-		3, 4, 2, 0, 57, 58, 5, 21, 0, 0, 58, 60, 1, 0, 0, 0, 59, 47, 1, 0, 0, 0,
-		59, 49, 1, 0, 0, 0, 59, 50, 1, 0, 0, 0, 59, 51, 1, 0, 0, 0, 59, 52, 1,
-		0, 0, 0, 59, 53, 1, 0, 0, 0, 59, 54, 1, 0, 0, 0, 59, 55, 1, 0, 0, 0, 60,
-		66, 1, 0, 0, 0, 61, 62, 10, 2, 0, 0, 62, 63, 7, 0, 0, 0, 63, 65, 3, 4,
-		2, 3, 64, 61, 1, 0, 0, 0, 65, 68, 1, 0, 0, 0, 66, 64, 1, 0, 0, 0, 66, 67,
-		1, 0, 0, 0, 67, 5, 1, 0, 0, 0, 68, 66, 1, 0, 0, 0, 69, 74, 3, 4, 2, 0,
-		70, 71, 5, 26, 0, 0, 71, 73, 3, 4, 2, 0, 72, 70, 1, 0, 0, 0, 73, 76, 1,
-		0, 0, 0, 74, 72, 1, 0, 0, 0, 74, 75, 1, 0, 0, 0, 75, 7, 1, 0, 0, 0, 76,
-		74, 1, 0, 0, 0, 77, 78, 7, 1, 0, 0, 78, 80, 5, 20, 0, 0, 79, 81, 3, 6,
-		3, 0, 80, 79, 1, 0, 0, 0, 80, 81, 1, 0, 0, 0, 81, 82, 1, 0, 0, 0, 82, 83,
-		5, 21, 0, 0, 83, 9, 1, 0, 0, 0, 84, 85, 5, 27, 0, 0, 85, 86, 3, 8, 4, 0,
-		86, 11, 1, 0, 0, 0, 87, 88, 5, 33, 0, 0, 88, 90, 5, 35, 0, 0, 89, 91, 3,
-		10, 5, 0, 90, 89, 1, 0, 0, 0, 90, 91, 1, 0, 0, 0, 91, 13, 1, 0, 0, 0, 92,
-		93, 5, 6, 0, 0, 93, 97, 5, 24, 0, 0, 94, 96, 3, 12, 6, 0, 95, 94, 1, 0,
-		0, 0, 96, 99, 1, 0, 0, 0, 97, 95, 1, 0, 0, 0, 97, 98, 1, 0, 0, 0, 98, 100,
-		1, 0, 0, 0, 99, 97, 1, 0, 0, 0, 100, 101, 5, 25, 0, 0, 101, 15, 1, 0, 0,
-		0, 102, 104, 3, 14, 7, 0, 103, 102, 1, 0, 0, 0, 103, 104, 1, 0, 0, 0, 104,
-		108, 1, 0, 0, 0, 105, 107, 3, 36, 18, 0, 106, 105, 1, 0, 0, 0, 107, 110,
-		1, 0, 0, 0, 108, 106, 1, 0, 0, 0, 108, 109, 1, 0, 0, 0, 109, 111, 1, 0,
-		0, 0, 110, 108, 1, 0, 0, 0, 111, 112, 5, 0, 0, 1, 112, 17, 1, 0, 0, 0,
-		113, 114, 5, 22, 0, 0, 114, 115, 3, 4, 2, 0, 115, 116, 5, 28, 0, 0, 116,
-		117, 5, 23, 0, 0, 117, 19, 1, 0, 0, 0, 118, 122, 3, 2, 1, 0, 119, 122,
-		5, 35, 0, 0, 120, 122, 5, 14, 0, 0, 121, 118, 1, 0, 0, 0, 121, 119, 1,
-		0, 0, 0, 121, 120, 1, 0, 0, 0, 122, 21, 1, 0, 0, 0, 123, 124, 3, 4, 2,
-		0, 124, 125, 5, 15, 0, 0, 125, 126, 5, 16, 0, 0, 126, 127, 5, 17, 0, 0,
-		127, 158, 1, 0, 0, 0, 128, 129, 3, 4, 2, 0, 129, 130, 5, 15, 0, 0, 130,
-		131, 5, 17, 0, 0, 131, 132, 5, 12, 0, 0, 132, 133, 5, 13, 0, 0, 133, 134,
-		3, 4, 2, 0, 134, 158, 1, 0, 0, 0, 135, 158, 3, 4, 2, 0, 136, 138, 5, 24,
-		0, 0, 137, 139, 3, 24, 12, 0, 138, 137, 1, 0, 0, 0, 139, 140, 1, 0, 0,
-		0, 140, 138, 1, 0, 0, 0, 140, 141, 1, 0, 0, 0, 141, 142, 1, 0, 0, 0, 142,
-		143, 5, 25, 0, 0, 143, 158, 1, 0, 0, 0, 144, 148, 5, 24, 0, 0, 145, 147,
-		3, 22, 11, 0, 146, 145, 1, 0, 0, 0, 147, 150, 1, 0, 0, 0, 148, 146, 1,
-		0, 0, 0, 148, 149, 1, 0, 0, 0, 149, 151, 1, 0, 0, 0, 150, 148, 1, 0, 0,
-		0, 151, 158, 5, 25, 0, 0, 152, 153, 5, 7, 0, 0, 153, 154, 3, 4, 2, 0, 154,
-		155, 5, 11, 0, 0, 155, 156, 3, 22, 11, 0, 156, 158, 1, 0, 0, 0, 157, 123,
-		1, 0, 0, 0, 157, 128, 1, 0, 0, 0, 157, 135, 1, 0, 0, 0, 157, 136, 1, 0,
-		0, 0, 157, 144, 1, 0, 0, 0, 157, 152, 1, 0, 0, 0, 158, 23, 1, 0, 0, 0,
-		159, 160, 3, 20, 10, 0, 160, 161, 5, 11, 0, 0, 161, 162, 3, 22, 11, 0,
-		162, 25, 1, 0, 0, 0, 163, 164, 5, 13, 0, 0, 164, 167, 3, 30, 15, 0, 165,
-		167, 5, 18, 0, 0, 166, 163, 1, 0, 0, 0, 166, 165, 1, 0, 0, 0, 167, 27,
-		1, 0, 0, 0, 168, 169, 5, 7, 0, 0, 169, 170, 3, 4, 2, 0, 170, 171, 3, 26,
-		13, 0, 171, 29, 1, 0, 0, 0, 172, 193, 3, 4, 2, 0, 173, 175, 5, 24, 0, 0,
-		174, 176, 3, 32, 16, 0, 175, 174, 1, 0, 0, 0, 176, 177, 1, 0, 0, 0, 177,
-		175, 1, 0, 0, 0, 177, 178, 1, 0, 0, 0, 178, 179, 1, 0, 0, 0, 179, 180,
-		5, 25, 0, 0, 180, 193, 1, 0, 0, 0, 181, 185, 5, 24, 0, 0, 182, 184, 3,
-		28, 14, 0, 183, 182, 1, 0, 0, 0, 184, 187, 1, 0, 0, 0, 185, 183, 1, 0,
-		0, 0, 185, 186, 1, 0, 0, 0, 186, 188, 1, 0, 0, 0, 187, 185, 1, 0, 0, 0,
-		188, 189, 5, 14, 0, 0, 189, 190, 3, 26, 13, 0, 190, 191, 5, 25, 0, 0, 191,
-		193, 1, 0, 0, 0, 192, 172, 1, 0, 0, 0, 192, 173, 1, 0, 0, 0, 192, 181,
-		1, 0, 0, 0, 193, 31, 1, 0, 0, 0, 194, 195, 3, 20, 10, 0, 195, 196, 3, 26,
-		13, 0, 196, 33, 1, 0, 0, 0, 197, 200, 3, 4, 2, 0, 198, 200, 3, 18, 9, 0,
-		199, 197, 1, 0, 0, 0, 199, 198, 1, 0, 0, 0, 200, 35, 1, 0, 0, 0, 201, 202,
-		5, 10, 0, 0, 202, 203, 3, 34, 17, 0, 203, 204, 5, 20, 0, 0, 204, 205, 5,
-		8, 0, 0, 205, 206, 5, 27, 0, 0, 206, 207, 3, 22, 11, 0, 207, 208, 5, 9,
-		0, 0, 208, 209, 5, 27, 0, 0, 209, 210, 3, 30, 15, 0, 210, 211, 5, 21, 0,
-		0, 211, 219, 1, 0, 0, 0, 212, 213, 5, 19, 0, 0, 213, 214, 3, 34, 17, 0,
-		214, 215, 5, 11, 0, 0, 215, 216, 3, 4, 2, 0, 216, 219, 1, 0, 0, 0, 217,
-		219, 3, 8, 4, 0, 218, 201, 1, 0, 0, 0, 218, 212, 1, 0, 0, 0, 218, 217,
-		1, 0, 0, 0, 219, 37, 1, 0, 0, 0, 19, 45, 59, 66, 74, 80, 90, 97, 103, 108,
-		121, 140, 148, 157, 166, 177, 185, 192, 199, 218,
+		11, 1, 11, 4, 11, 156, 8, 11, 11, 11, 12, 11, 157, 1, 11, 1, 11, 1, 11,
+		1, 11, 1, 11, 1, 11, 1, 11, 3, 11, 167, 8, 11, 1, 12, 1, 12, 1, 12, 1,
+		12, 1, 13, 1, 13, 1, 13, 3, 13, 176, 8, 13, 1, 14, 1, 14, 1, 14, 1, 14,
+		1, 15, 1, 15, 1, 15, 4, 15, 185, 8, 15, 11, 15, 12, 15, 186, 1, 15, 1,
+		15, 1, 15, 1, 15, 5, 15, 193, 8, 15, 10, 15, 12, 15, 196, 9, 15, 1, 15,
+		1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 5, 15, 205, 8, 15, 10, 15, 12,
+		15, 208, 9, 15, 1, 15, 1, 15, 1, 15, 1, 15, 3, 15, 214, 8, 15, 1, 16, 1,
+		16, 1, 16, 1, 17, 1, 17, 3, 17, 221, 8, 17, 1, 18, 1, 18, 1, 18, 1, 18,
+		1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1,
+		18, 1, 18, 1, 18, 3, 18, 240, 8, 18, 1, 18, 0, 1, 4, 19, 0, 2, 4, 6, 8,
+		10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 0, 2, 2, 0, 1,
+		1, 30, 30, 2, 0, 18, 18, 34, 34, 258, 0, 38, 1, 0, 0, 0, 2, 45, 1, 0, 0,
+		0, 4, 59, 1, 0, 0, 0, 6, 69, 1, 0, 0, 0, 8, 77, 1, 0, 0, 0, 10, 84, 1,
+		0, 0, 0, 12, 87, 1, 0, 0, 0, 14, 92, 1, 0, 0, 0, 16, 103, 1, 0, 0, 0, 18,
+		113, 1, 0, 0, 0, 20, 121, 1, 0, 0, 0, 22, 166, 1, 0, 0, 0, 24, 168, 1,
+		0, 0, 0, 26, 175, 1, 0, 0, 0, 28, 177, 1, 0, 0, 0, 30, 213, 1, 0, 0, 0,
+		32, 215, 1, 0, 0, 0, 34, 220, 1, 0, 0, 0, 36, 239, 1, 0, 0, 0, 38, 39,
+		5, 23, 0, 0, 39, 40, 3, 4, 2, 0, 40, 41, 3, 4, 2, 0, 41, 42, 5, 24, 0,
+		0, 42, 1, 1, 0, 0, 0, 43, 46, 5, 31, 0, 0, 44, 46, 5, 32, 0, 0, 45, 43,
+		1, 0, 0, 0, 45, 44, 1, 0, 0, 0, 46, 3, 1, 0, 0, 0, 47, 48, 6, 2, -1, 0,
+		48, 60, 5, 36, 0, 0, 49, 60, 5, 38, 0, 0, 50, 60, 5, 33, 0, 0, 51, 60,
+		5, 37, 0, 0, 52, 60, 5, 35, 0, 0, 53, 60, 3, 0, 0, 0, 54, 60, 3, 2, 1,
+		0, 55, 56, 5, 21, 0, 0, 56, 57, 3, 4, 2, 0, 57, 58, 5, 22, 0, 0, 58, 60,
+		1, 0, 0, 0, 59, 47, 1, 0, 0, 0, 59, 49, 1, 0, 0, 0, 59, 50, 1, 0, 0, 0,
+		59, 51, 1, 0, 0, 0, 59, 52, 1, 0, 0, 0, 59, 53, 1, 0, 0, 0, 59, 54, 1,
+		0, 0, 0, 59, 55, 1, 0, 0, 0, 60, 66, 1, 0, 0, 0, 61, 62, 10, 2, 0, 0, 62,
+		63, 7, 0, 0, 0, 63, 65, 3, 4, 2, 3, 64, 61, 1, 0, 0, 0, 65, 68, 1, 0, 0,
+		0, 66, 64, 1, 0, 0, 0, 66, 67, 1, 0, 0, 0, 67, 5, 1, 0, 0, 0, 68, 66, 1,
+		0, 0, 0, 69, 74, 3, 4, 2, 0, 70, 71, 5, 27, 0, 0, 71, 73, 3, 4, 2, 0, 72,
+		70, 1, 0, 0, 0, 73, 76, 1, 0, 0, 0, 74, 72, 1, 0, 0, 0, 74, 75, 1, 0, 0,
+		0, 75, 7, 1, 0, 0, 0, 76, 74, 1, 0, 0, 0, 77, 78, 7, 1, 0, 0, 78, 80, 5,
+		21, 0, 0, 79, 81, 3, 6, 3, 0, 80, 79, 1, 0, 0, 0, 80, 81, 1, 0, 0, 0, 81,
+		82, 1, 0, 0, 0, 82, 83, 5, 22, 0, 0, 83, 9, 1, 0, 0, 0, 84, 85, 5, 28,
+		0, 0, 85, 86, 3, 8, 4, 0, 86, 11, 1, 0, 0, 0, 87, 88, 5, 34, 0, 0, 88,
+		90, 5, 36, 0, 0, 89, 91, 3, 10, 5, 0, 90, 89, 1, 0, 0, 0, 90, 91, 1, 0,
+		0, 0, 91, 13, 1, 0, 0, 0, 92, 93, 5, 7, 0, 0, 93, 97, 5, 25, 0, 0, 94,
+		96, 3, 12, 6, 0, 95, 94, 1, 0, 0, 0, 96, 99, 1, 0, 0, 0, 97, 95, 1, 0,
+		0, 0, 97, 98, 1, 0, 0, 0, 98, 100, 1, 0, 0, 0, 99, 97, 1, 0, 0, 0, 100,
+		101, 5, 26, 0, 0, 101, 15, 1, 0, 0, 0, 102, 104, 3, 14, 7, 0, 103, 102,
+		1, 0, 0, 0, 103, 104, 1, 0, 0, 0, 104, 108, 1, 0, 0, 0, 105, 107, 3, 36,
+		18, 0, 106, 105, 1, 0, 0, 0, 107, 110, 1, 0, 0, 0, 108, 106, 1, 0, 0, 0,
+		108, 109, 1, 0, 0, 0, 109, 111, 1, 0, 0, 0, 110, 108, 1, 0, 0, 0, 111,
+		112, 5, 0, 0, 1, 112, 17, 1, 0, 0, 0, 113, 114, 5, 23, 0, 0, 114, 115,
+		3, 4, 2, 0, 115, 116, 5, 29, 0, 0, 116, 117, 5, 24, 0, 0, 117, 19, 1, 0,
+		0, 0, 118, 122, 3, 2, 1, 0, 119, 122, 5, 36, 0, 0, 120, 122, 5, 15, 0,
+		0, 121, 118, 1, 0, 0, 0, 121, 119, 1, 0, 0, 0, 121, 120, 1, 0, 0, 0, 122,
+		21, 1, 0, 0, 0, 123, 124, 3, 4, 2, 0, 124, 125, 5, 16, 0, 0, 125, 126,
+		5, 17, 0, 0, 126, 127, 5, 18, 0, 0, 127, 167, 1, 0, 0, 0, 128, 129, 3,
+		4, 2, 0, 129, 130, 5, 16, 0, 0, 130, 131, 5, 18, 0, 0, 131, 132, 5, 13,
+		0, 0, 132, 133, 5, 14, 0, 0, 133, 134, 3, 4, 2, 0, 134, 167, 1, 0, 0, 0,
+		135, 167, 3, 4, 2, 0, 136, 138, 5, 25, 0, 0, 137, 139, 3, 24, 12, 0, 138,
+		137, 1, 0, 0, 0, 139, 140, 1, 0, 0, 0, 140, 138, 1, 0, 0, 0, 140, 141,
+		1, 0, 0, 0, 141, 142, 1, 0, 0, 0, 142, 143, 5, 26, 0, 0, 143, 167, 1, 0,
+		0, 0, 144, 148, 5, 25, 0, 0, 145, 147, 3, 22, 11, 0, 146, 145, 1, 0, 0,
+		0, 147, 150, 1, 0, 0, 0, 148, 146, 1, 0, 0, 0, 148, 149, 1, 0, 0, 0, 149,
+		151, 1, 0, 0, 0, 150, 148, 1, 0, 0, 0, 151, 167, 5, 26, 0, 0, 152, 153,
+		5, 2, 0, 0, 153, 155, 5, 25, 0, 0, 154, 156, 3, 22, 11, 0, 155, 154, 1,
+		0, 0, 0, 156, 157, 1, 0, 0, 0, 157, 155, 1, 0, 0, 0, 157, 158, 1, 0, 0,
+		0, 158, 159, 1, 0, 0, 0, 159, 160, 5, 26, 0, 0, 160, 167, 1, 0, 0, 0, 161,
+		162, 5, 8, 0, 0, 162, 163, 3, 4, 2, 0, 163, 164, 5, 12, 0, 0, 164, 165,
+		3, 22, 11, 0, 165, 167, 1, 0, 0, 0, 166, 123, 1, 0, 0, 0, 166, 128, 1,
+		0, 0, 0, 166, 135, 1, 0, 0, 0, 166, 136, 1, 0, 0, 0, 166, 144, 1, 0, 0,
+		0, 166, 152, 1, 0, 0, 0, 166, 161, 1, 0, 0, 0, 167, 23, 1, 0, 0, 0, 168,
+		169, 3, 20, 10, 0, 169, 170, 5, 12, 0, 0, 170, 171, 3, 22, 11, 0, 171,
+		25, 1, 0, 0, 0, 172, 173, 5, 14, 0, 0, 173, 176, 3, 30, 15, 0, 174, 176,
+		5, 19, 0, 0, 175, 172, 1, 0, 0, 0, 175, 174, 1, 0, 0, 0, 176, 27, 1, 0,
+		0, 0, 177, 178, 5, 8, 0, 0, 178, 179, 3, 4, 2, 0, 179, 180, 3, 26, 13,
+		0, 180, 29, 1, 0, 0, 0, 181, 214, 3, 4, 2, 0, 182, 184, 5, 25, 0, 0, 183,
+		185, 3, 32, 16, 0, 184, 183, 1, 0, 0, 0, 185, 186, 1, 0, 0, 0, 186, 184,
+		1, 0, 0, 0, 186, 187, 1, 0, 0, 0, 187, 188, 1, 0, 0, 0, 188, 189, 5, 26,
+		0, 0, 189, 214, 1, 0, 0, 0, 190, 194, 5, 25, 0, 0, 191, 193, 3, 28, 14,
+		0, 192, 191, 1, 0, 0, 0, 193, 196, 1, 0, 0, 0, 194, 192, 1, 0, 0, 0, 194,
+		195, 1, 0, 0, 0, 195, 197, 1, 0, 0, 0, 196, 194, 1, 0, 0, 0, 197, 198,
+		5, 15, 0, 0, 198, 199, 3, 26, 13, 0, 199, 200, 5, 26, 0, 0, 200, 214, 1,
+		0, 0, 0, 201, 202, 5, 2, 0, 0, 202, 206, 5, 25, 0, 0, 203, 205, 3, 28,
+		14, 0, 204, 203, 1, 0, 0, 0, 205, 208, 1, 0, 0, 0, 206, 204, 1, 0, 0, 0,
+		206, 207, 1, 0, 0, 0, 207, 209, 1, 0, 0, 0, 208, 206, 1, 0, 0, 0, 209,
+		210, 5, 15, 0, 0, 210, 211, 3, 26, 13, 0, 211, 212, 5, 26, 0, 0, 212, 214,
+		1, 0, 0, 0, 213, 181, 1, 0, 0, 0, 213, 182, 1, 0, 0, 0, 213, 190, 1, 0,
+		0, 0, 213, 201, 1, 0, 0, 0, 214, 31, 1, 0, 0, 0, 215, 216, 3, 20, 10, 0,
+		216, 217, 3, 26, 13, 0, 217, 33, 1, 0, 0, 0, 218, 221, 3, 4, 2, 0, 219,
+		221, 3, 18, 9, 0, 220, 218, 1, 0, 0, 0, 220, 219, 1, 0, 0, 0, 221, 35,
+		1, 0, 0, 0, 222, 223, 5, 11, 0, 0, 223, 224, 3, 34, 17, 0, 224, 225, 5,
+		21, 0, 0, 225, 226, 5, 9, 0, 0, 226, 227, 5, 28, 0, 0, 227, 228, 3, 22,
+		11, 0, 228, 229, 5, 10, 0, 0, 229, 230, 5, 28, 0, 0, 230, 231, 3, 30, 15,
+		0, 231, 232, 5, 22, 0, 0, 232, 240, 1, 0, 0, 0, 233, 234, 5, 20, 0, 0,
+		234, 235, 3, 34, 17, 0, 235, 236, 5, 12, 0, 0, 236, 237, 3, 4, 2, 0, 237,
+		240, 1, 0, 0, 0, 238, 240, 3, 8, 4, 0, 239, 222, 1, 0, 0, 0, 239, 233,
+		1, 0, 0, 0, 239, 238, 1, 0, 0, 0, 240, 37, 1, 0, 0, 0, 21, 45, 59, 66,
+		74, 80, 90, 97, 103, 108, 121, 140, 148, 157, 166, 175, 186, 194, 206,
+		213, 220, 239,
 	}
 	deserializer := antlr.NewATNDeserializer(nil)
 	staticData.atn = deserializer.Deserialize(staticData.serializedATN)
@@ -188,42 +199,43 @@ func NewNumscriptParser(input antlr.TokenStream) *NumscriptParser {
 const (
 	NumscriptParserEOF                        = antlr.TokenEOF
 	NumscriptParserT__0                       = 1
-	NumscriptParserWS                         = 2
-	NumscriptParserNEWLINE                    = 3
-	NumscriptParserMULTILINE_COMMENT          = 4
-	NumscriptParserLINE_COMMENT               = 5
-	NumscriptParserVARS                       = 6
-	NumscriptParserMAX                        = 7
-	NumscriptParserSOURCE                     = 8
-	NumscriptParserDESTINATION                = 9
-	NumscriptParserSEND                       = 10
-	NumscriptParserFROM                       = 11
-	NumscriptParserUP                         = 12
-	NumscriptParserTO                         = 13
-	NumscriptParserREMAINING                  = 14
-	NumscriptParserALLOWING                   = 15
-	NumscriptParserUNBOUNDED                  = 16
-	NumscriptParserOVERDRAFT                  = 17
-	NumscriptParserKEPT                       = 18
-	NumscriptParserSAVE                       = 19
-	NumscriptParserLPARENS                    = 20
-	NumscriptParserRPARENS                    = 21
-	NumscriptParserLBRACKET                   = 22
-	NumscriptParserRBRACKET                   = 23
-	NumscriptParserLBRACE                     = 24
-	NumscriptParserRBRACE                     = 25
-	NumscriptParserCOMMA                      = 26
-	NumscriptParserEQ                         = 27
-	NumscriptParserSTAR                       = 28
-	NumscriptParserMINUS                      = 29
-	NumscriptParserRATIO_PORTION_LITERAL      = 30
-	NumscriptParserPERCENTAGE_PORTION_LITERAL = 31
-	NumscriptParserSTRING                     = 32
-	NumscriptParserIDENTIFIER                 = 33
-	NumscriptParserNUMBER                     = 34
-	NumscriptParserVARIABLE_NAME              = 35
-	NumscriptParserACCOUNT                    = 36
-	NumscriptParserASSET                      = 37
+	NumscriptParserT__1                       = 2
+	NumscriptParserWS                         = 3
+	NumscriptParserNEWLINE                    = 4
+	NumscriptParserMULTILINE_COMMENT          = 5
+	NumscriptParserLINE_COMMENT               = 6
+	NumscriptParserVARS                       = 7
+	NumscriptParserMAX                        = 8
+	NumscriptParserSOURCE                     = 9
+	NumscriptParserDESTINATION                = 10
+	NumscriptParserSEND                       = 11
+	NumscriptParserFROM                       = 12
+	NumscriptParserUP                         = 13
+	NumscriptParserTO                         = 14
+	NumscriptParserREMAINING                  = 15
+	NumscriptParserALLOWING                   = 16
+	NumscriptParserUNBOUNDED                  = 17
+	NumscriptParserOVERDRAFT                  = 18
+	NumscriptParserKEPT                       = 19
+	NumscriptParserSAVE                       = 20
+	NumscriptParserLPARENS                    = 21
+	NumscriptParserRPARENS                    = 22
+	NumscriptParserLBRACKET                   = 23
+	NumscriptParserRBRACKET                   = 24
+	NumscriptParserLBRACE                     = 25
+	NumscriptParserRBRACE                     = 26
+	NumscriptParserCOMMA                      = 27
+	NumscriptParserEQ                         = 28
+	NumscriptParserSTAR                       = 29
+	NumscriptParserMINUS                      = 30
+	NumscriptParserRATIO_PORTION_LITERAL      = 31
+	NumscriptParserPERCENTAGE_PORTION_LITERAL = 32
+	NumscriptParserSTRING                     = 33
+	NumscriptParserIDENTIFIER                 = 34
+	NumscriptParserNUMBER                     = 35
+	NumscriptParserVARIABLE_NAME              = 36
+	NumscriptParserACCOUNT                    = 37
+	NumscriptParserASSET                      = 38
 )
 
 // NumscriptParser rules.
@@ -1611,7 +1623,7 @@ func (p *NumscriptParser) FunctionCall() (localctx IFunctionCallContext) {
 	}
 	_la = p.GetTokenStream().LA(1)
 
-	if (int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&265219473408) != 0 {
+	if (int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&530438946816) != 0 {
 		{
 			p.SetState(79)
 			p.FunctionCallArgs()
@@ -2271,7 +2283,7 @@ func (p *NumscriptParser) Program() (localctx IProgramContext) {
 	}
 	_la = p.GetTokenStream().LA(1)
 
-	for (int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&8590590976) != 0 {
+	for (int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&17181181952) != 0 {
 		{
 			p.SetState(105)
 			p.Statement()
@@ -2844,6 +2856,85 @@ func (s *SrcAccountBoundedOverdraftContext) ExitRule(listener antlr.ParseTreeLis
 	}
 }
 
+type SrcOneofContext struct {
+	SourceContext
+}
+
+func NewSrcOneofContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *SrcOneofContext {
+	var p = new(SrcOneofContext)
+
+	InitEmptySourceContext(&p.SourceContext)
+	p.parser = parser
+	p.CopyAll(ctx.(*SourceContext))
+
+	return p
+}
+
+func (s *SrcOneofContext) GetRuleContext() antlr.RuleContext {
+	return s
+}
+
+func (s *SrcOneofContext) LBRACE() antlr.TerminalNode {
+	return s.GetToken(NumscriptParserLBRACE, 0)
+}
+
+func (s *SrcOneofContext) RBRACE() antlr.TerminalNode {
+	return s.GetToken(NumscriptParserRBRACE, 0)
+}
+
+func (s *SrcOneofContext) AllSource() []ISourceContext {
+	children := s.GetChildren()
+	len := 0
+	for _, ctx := range children {
+		if _, ok := ctx.(ISourceContext); ok {
+			len++
+		}
+	}
+
+	tst := make([]ISourceContext, len)
+	i := 0
+	for _, ctx := range children {
+		if t, ok := ctx.(ISourceContext); ok {
+			tst[i] = t.(ISourceContext)
+			i++
+		}
+	}
+
+	return tst
+}
+
+func (s *SrcOneofContext) Source(i int) ISourceContext {
+	var t antlr.RuleContext
+	j := 0
+	for _, ctx := range s.GetChildren() {
+		if _, ok := ctx.(ISourceContext); ok {
+			if j == i {
+				t = ctx.(antlr.RuleContext)
+				break
+			}
+			j++
+		}
+	}
+
+	if t == nil {
+		return nil
+	}
+
+	return t.(ISourceContext)
+}
+
+func (s *SrcOneofContext) EnterRule(listener antlr.ParseTreeListener) {
+	if listenerT, ok := listener.(NumscriptListener); ok {
+		listenerT.EnterSrcOneof(s)
+	}
+}
+
+func (s *SrcOneofContext) ExitRule(listener antlr.ParseTreeListener) {
+	if listenerT, ok := listener.(NumscriptListener); ok {
+		listenerT.ExitSrcOneof(s)
+	}
+}
+
 type SrcAccountUnboundedOverdraftContext struct {
 	SourceContext
 	address IValueExprContext
@@ -3191,13 +3282,13 @@ func (p *NumscriptParser) Source() (localctx ISourceContext) {
 	p.EnterRule(localctx, 22, NumscriptParserRULE_source)
 	var _la int
 
-	p.SetState(157)
+	p.SetState(166)
 	p.GetErrorHandler().Sync(p)
 	if p.HasError() {
 		goto errorExit
 	}
 
-	switch p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 12, p.GetParserRuleContext()) {
+	switch p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 13, p.GetParserRuleContext()) {
 	case 1:
 		localctx = NewSrcAccountUnboundedOverdraftContext(p, localctx)
 		p.EnterOuterAlt(localctx, 1)
@@ -3309,7 +3400,7 @@ func (p *NumscriptParser) Source() (localctx ISourceContext) {
 		}
 		_la = p.GetTokenStream().LA(1)
 
-		for ok := true; ok; ok = ((int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&37580980224) != 0) {
+		for ok := true; ok; ok = ((int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&75161960448) != 0) {
 			{
 				p.SetState(137)
 				p.AllotmentClauseSrc()
@@ -3349,7 +3440,7 @@ func (p *NumscriptParser) Source() (localctx ISourceContext) {
 		}
 		_la = p.GetTokenStream().LA(1)
 
-		for (int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&265236250752) != 0 {
+		for (int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&530472501508) != 0 {
 			{
 				p.SetState(145)
 				p.Source()
@@ -3372,11 +3463,11 @@ func (p *NumscriptParser) Source() (localctx ISourceContext) {
 		}
 
 	case 6:
-		localctx = NewSrcCappedContext(p, localctx)
+		localctx = NewSrcOneofContext(p, localctx)
 		p.EnterOuterAlt(localctx, 6)
 		{
 			p.SetState(152)
-			p.Match(NumscriptParserMAX)
+			p.Match(NumscriptParserT__1)
 			if p.HasError() {
 				// Recognition error - abort rule
 				goto errorExit
@@ -3384,13 +3475,61 @@ func (p *NumscriptParser) Source() (localctx ISourceContext) {
 		}
 		{
 			p.SetState(153)
+			p.Match(NumscriptParserLBRACE)
+			if p.HasError() {
+				// Recognition error - abort rule
+				goto errorExit
+			}
+		}
+		p.SetState(155)
+		p.GetErrorHandler().Sync(p)
+		if p.HasError() {
+			goto errorExit
+		}
+		_la = p.GetTokenStream().LA(1)
+
+		for ok := true; ok; ok = ((int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&530472501508) != 0) {
+			{
+				p.SetState(154)
+				p.Source()
+			}
+
+			p.SetState(157)
+			p.GetErrorHandler().Sync(p)
+			if p.HasError() {
+				goto errorExit
+			}
+			_la = p.GetTokenStream().LA(1)
+		}
+		{
+			p.SetState(159)
+			p.Match(NumscriptParserRBRACE)
+			if p.HasError() {
+				// Recognition error - abort rule
+				goto errorExit
+			}
+		}
+
+	case 7:
+		localctx = NewSrcCappedContext(p, localctx)
+		p.EnterOuterAlt(localctx, 7)
+		{
+			p.SetState(161)
+			p.Match(NumscriptParserMAX)
+			if p.HasError() {
+				// Recognition error - abort rule
+				goto errorExit
+			}
+		}
+		{
+			p.SetState(162)
 
 			var _x = p.valueExpr(0)
 
 			localctx.(*SrcCappedContext).cap_ = _x
 		}
 		{
-			p.SetState(154)
+			p.SetState(163)
 			p.Match(NumscriptParserFROM)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -3398,7 +3537,7 @@ func (p *NumscriptParser) Source() (localctx ISourceContext) {
 			}
 		}
 		{
-			p.SetState(155)
+			p.SetState(164)
 			p.Source()
 		}
 
@@ -3528,11 +3667,11 @@ func (p *NumscriptParser) AllotmentClauseSrc() (localctx IAllotmentClauseSrcCont
 	p.EnterRule(localctx, 24, NumscriptParserRULE_allotmentClauseSrc)
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(159)
+		p.SetState(168)
 		p.Allotment()
 	}
 	{
-		p.SetState(160)
+		p.SetState(169)
 		p.Match(NumscriptParserFROM)
 		if p.HasError() {
 			// Recognition error - abort rule
@@ -3540,7 +3679,7 @@ func (p *NumscriptParser) AllotmentClauseSrc() (localctx IAllotmentClauseSrcCont
 		}
 	}
 	{
-		p.SetState(161)
+		p.SetState(170)
 		p.Source()
 	}
 
@@ -3698,7 +3837,7 @@ func (s *DestinationToContext) ExitRule(listener antlr.ParseTreeListener) {
 func (p *NumscriptParser) KeptOrDestination() (localctx IKeptOrDestinationContext) {
 	localctx = NewKeptOrDestinationContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 26, NumscriptParserRULE_keptOrDestination)
-	p.SetState(166)
+	p.SetState(175)
 	p.GetErrorHandler().Sync(p)
 	if p.HasError() {
 		goto errorExit
@@ -3709,7 +3848,7 @@ func (p *NumscriptParser) KeptOrDestination() (localctx IKeptOrDestinationContex
 		localctx = NewDestinationToContext(p, localctx)
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(163)
+			p.SetState(172)
 			p.Match(NumscriptParserTO)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -3717,7 +3856,7 @@ func (p *NumscriptParser) KeptOrDestination() (localctx IKeptOrDestinationContex
 			}
 		}
 		{
-			p.SetState(164)
+			p.SetState(173)
 			p.Destination()
 		}
 
@@ -3725,7 +3864,7 @@ func (p *NumscriptParser) KeptOrDestination() (localctx IKeptOrDestinationContex
 		localctx = NewDestinationKeptContext(p, localctx)
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(165)
+			p.SetState(174)
 			p.Match(NumscriptParserKEPT)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -3860,7 +3999,7 @@ func (p *NumscriptParser) DestinationInOrderClause() (localctx IDestinationInOrd
 	p.EnterRule(localctx, 28, NumscriptParserRULE_destinationInOrderClause)
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(168)
+		p.SetState(177)
 		p.Match(NumscriptParserMAX)
 		if p.HasError() {
 			// Recognition error - abort rule
@@ -3868,11 +4007,11 @@ func (p *NumscriptParser) DestinationInOrderClause() (localctx IDestinationInOrd
 		}
 	}
 	{
-		p.SetState(169)
+		p.SetState(178)
 		p.valueExpr(0)
 	}
 	{
-		p.SetState(170)
+		p.SetState(179)
 		p.KeptOrDestination()
 	}
 
@@ -4042,6 +4181,105 @@ func (s *DestInorderContext) ExitRule(listener antlr.ParseTreeListener) {
 	}
 }
 
+type DestOneofContext struct {
+	DestinationContext
+}
+
+func NewDestOneofContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *DestOneofContext {
+	var p = new(DestOneofContext)
+
+	InitEmptyDestinationContext(&p.DestinationContext)
+	p.parser = parser
+	p.CopyAll(ctx.(*DestinationContext))
+
+	return p
+}
+
+func (s *DestOneofContext) GetRuleContext() antlr.RuleContext {
+	return s
+}
+
+func (s *DestOneofContext) LBRACE() antlr.TerminalNode {
+	return s.GetToken(NumscriptParserLBRACE, 0)
+}
+
+func (s *DestOneofContext) REMAINING() antlr.TerminalNode {
+	return s.GetToken(NumscriptParserREMAINING, 0)
+}
+
+func (s *DestOneofContext) KeptOrDestination() IKeptOrDestinationContext {
+	var t antlr.RuleContext
+	for _, ctx := range s.GetChildren() {
+		if _, ok := ctx.(IKeptOrDestinationContext); ok {
+			t = ctx.(antlr.RuleContext)
+			break
+		}
+	}
+
+	if t == nil {
+		return nil
+	}
+
+	return t.(IKeptOrDestinationContext)
+}
+
+func (s *DestOneofContext) RBRACE() antlr.TerminalNode {
+	return s.GetToken(NumscriptParserRBRACE, 0)
+}
+
+func (s *DestOneofContext) AllDestinationInOrderClause() []IDestinationInOrderClauseContext {
+	children := s.GetChildren()
+	len := 0
+	for _, ctx := range children {
+		if _, ok := ctx.(IDestinationInOrderClauseContext); ok {
+			len++
+		}
+	}
+
+	tst := make([]IDestinationInOrderClauseContext, len)
+	i := 0
+	for _, ctx := range children {
+		if t, ok := ctx.(IDestinationInOrderClauseContext); ok {
+			tst[i] = t.(IDestinationInOrderClauseContext)
+			i++
+		}
+	}
+
+	return tst
+}
+
+func (s *DestOneofContext) DestinationInOrderClause(i int) IDestinationInOrderClauseContext {
+	var t antlr.RuleContext
+	j := 0
+	for _, ctx := range s.GetChildren() {
+		if _, ok := ctx.(IDestinationInOrderClauseContext); ok {
+			if j == i {
+				t = ctx.(antlr.RuleContext)
+				break
+			}
+			j++
+		}
+	}
+
+	if t == nil {
+		return nil
+	}
+
+	return t.(IDestinationInOrderClauseContext)
+}
+
+func (s *DestOneofContext) EnterRule(listener antlr.ParseTreeListener) {
+	if listenerT, ok := listener.(NumscriptListener); ok {
+		listenerT.EnterDestOneof(s)
+	}
+}
+
+func (s *DestOneofContext) ExitRule(listener antlr.ParseTreeListener) {
+	if listenerT, ok := listener.(NumscriptListener); ok {
+		listenerT.ExitDestOneof(s)
+	}
+}
+
 type DestAccountContext struct {
 	DestinationContext
 }
@@ -4172,18 +4410,18 @@ func (p *NumscriptParser) Destination() (localctx IDestinationContext) {
 	p.EnterRule(localctx, 30, NumscriptParserRULE_destination)
 	var _la int
 
-	p.SetState(192)
+	p.SetState(213)
 	p.GetErrorHandler().Sync(p)
 	if p.HasError() {
 		goto errorExit
 	}
 
-	switch p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 16, p.GetParserRuleContext()) {
+	switch p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 18, p.GetParserRuleContext()) {
 	case 1:
 		localctx = NewDestAccountContext(p, localctx)
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(172)
+			p.SetState(181)
 			p.valueExpr(0)
 		}
 
@@ -4191,27 +4429,27 @@ func (p *NumscriptParser) Destination() (localctx IDestinationContext) {
 		localctx = NewDestAllotmentContext(p, localctx)
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(173)
+			p.SetState(182)
 			p.Match(NumscriptParserLBRACE)
 			if p.HasError() {
 				// Recognition error - abort rule
 				goto errorExit
 			}
 		}
-		p.SetState(175)
+		p.SetState(184)
 		p.GetErrorHandler().Sync(p)
 		if p.HasError() {
 			goto errorExit
 		}
 		_la = p.GetTokenStream().LA(1)
 
-		for ok := true; ok; ok = ((int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&37580980224) != 0) {
+		for ok := true; ok; ok = ((int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&75161960448) != 0) {
 			{
-				p.SetState(174)
+				p.SetState(183)
 				p.AllotmentClauseDest()
 			}
 
-			p.SetState(177)
+			p.SetState(186)
 			p.GetErrorHandler().Sync(p)
 			if p.HasError() {
 				goto errorExit
@@ -4219,7 +4457,7 @@ func (p *NumscriptParser) Destination() (localctx IDestinationContext) {
 			_la = p.GetTokenStream().LA(1)
 		}
 		{
-			p.SetState(179)
+			p.SetState(188)
 			p.Match(NumscriptParserRBRACE)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -4231,14 +4469,14 @@ func (p *NumscriptParser) Destination() (localctx IDestinationContext) {
 		localctx = NewDestInorderContext(p, localctx)
 		p.EnterOuterAlt(localctx, 3)
 		{
-			p.SetState(181)
+			p.SetState(190)
 			p.Match(NumscriptParserLBRACE)
 			if p.HasError() {
 				// Recognition error - abort rule
 				goto errorExit
 			}
 		}
-		p.SetState(185)
+		p.SetState(194)
 		p.GetErrorHandler().Sync(p)
 		if p.HasError() {
 			goto errorExit
@@ -4247,11 +4485,11 @@ func (p *NumscriptParser) Destination() (localctx IDestinationContext) {
 
 		for _la == NumscriptParserMAX {
 			{
-				p.SetState(182)
+				p.SetState(191)
 				p.DestinationInOrderClause()
 			}
 
-			p.SetState(187)
+			p.SetState(196)
 			p.GetErrorHandler().Sync(p)
 			if p.HasError() {
 				goto errorExit
@@ -4259,7 +4497,7 @@ func (p *NumscriptParser) Destination() (localctx IDestinationContext) {
 			_la = p.GetTokenStream().LA(1)
 		}
 		{
-			p.SetState(188)
+			p.SetState(197)
 			p.Match(NumscriptParserREMAINING)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -4267,11 +4505,71 @@ func (p *NumscriptParser) Destination() (localctx IDestinationContext) {
 			}
 		}
 		{
-			p.SetState(189)
+			p.SetState(198)
 			p.KeptOrDestination()
 		}
 		{
-			p.SetState(190)
+			p.SetState(199)
+			p.Match(NumscriptParserRBRACE)
+			if p.HasError() {
+				// Recognition error - abort rule
+				goto errorExit
+			}
+		}
+
+	case 4:
+		localctx = NewDestOneofContext(p, localctx)
+		p.EnterOuterAlt(localctx, 4)
+		{
+			p.SetState(201)
+			p.Match(NumscriptParserT__1)
+			if p.HasError() {
+				// Recognition error - abort rule
+				goto errorExit
+			}
+		}
+		{
+			p.SetState(202)
+			p.Match(NumscriptParserLBRACE)
+			if p.HasError() {
+				// Recognition error - abort rule
+				goto errorExit
+			}
+		}
+		p.SetState(206)
+		p.GetErrorHandler().Sync(p)
+		if p.HasError() {
+			goto errorExit
+		}
+		_la = p.GetTokenStream().LA(1)
+
+		for _la == NumscriptParserMAX {
+			{
+				p.SetState(203)
+				p.DestinationInOrderClause()
+			}
+
+			p.SetState(208)
+			p.GetErrorHandler().Sync(p)
+			if p.HasError() {
+				goto errorExit
+			}
+			_la = p.GetTokenStream().LA(1)
+		}
+		{
+			p.SetState(209)
+			p.Match(NumscriptParserREMAINING)
+			if p.HasError() {
+				// Recognition error - abort rule
+				goto errorExit
+			}
+		}
+		{
+			p.SetState(210)
+			p.KeptOrDestination()
+		}
+		{
+			p.SetState(211)
 			p.Match(NumscriptParserRBRACE)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -4400,11 +4698,11 @@ func (p *NumscriptParser) AllotmentClauseDest() (localctx IAllotmentClauseDestCo
 	p.EnterRule(localctx, 32, NumscriptParserRULE_allotmentClauseDest)
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(194)
+		p.SetState(215)
 		p.Allotment()
 	}
 	{
-		p.SetState(195)
+		p.SetState(216)
 		p.KeptOrDestination()
 	}
 
@@ -4570,18 +4868,18 @@ func (s *SentLiteralContext) ExitRule(listener antlr.ParseTreeListener) {
 func (p *NumscriptParser) SentValue() (localctx ISentValueContext) {
 	localctx = NewSentValueContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 34, NumscriptParserRULE_sentValue)
-	p.SetState(199)
+	p.SetState(220)
 	p.GetErrorHandler().Sync(p)
 	if p.HasError() {
 		goto errorExit
 	}
 
-	switch p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 17, p.GetParserRuleContext()) {
+	switch p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 19, p.GetParserRuleContext()) {
 	case 1:
 		localctx = NewSentLiteralContext(p, localctx)
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(197)
+			p.SetState(218)
 			p.valueExpr(0)
 		}
 
@@ -4589,7 +4887,7 @@ func (p *NumscriptParser) SentValue() (localctx ISentValueContext) {
 		localctx = NewSentAllContext(p, localctx)
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(198)
+			p.SetState(219)
 			p.SentAllLit()
 		}
 
@@ -4889,7 +5187,7 @@ func (s *FnCallStatementContext) ExitRule(listener antlr.ParseTreeListener) {
 func (p *NumscriptParser) Statement() (localctx IStatementContext) {
 	localctx = NewStatementContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 36, NumscriptParserRULE_statement)
-	p.SetState(218)
+	p.SetState(239)
 	p.GetErrorHandler().Sync(p)
 	if p.HasError() {
 		goto errorExit
@@ -4900,7 +5198,7 @@ func (p *NumscriptParser) Statement() (localctx IStatementContext) {
 		localctx = NewSendStatementContext(p, localctx)
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(201)
+			p.SetState(222)
 			p.Match(NumscriptParserSEND)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -4908,11 +5206,11 @@ func (p *NumscriptParser) Statement() (localctx IStatementContext) {
 			}
 		}
 		{
-			p.SetState(202)
+			p.SetState(223)
 			p.SentValue()
 		}
 		{
-			p.SetState(203)
+			p.SetState(224)
 			p.Match(NumscriptParserLPARENS)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -4920,7 +5218,7 @@ func (p *NumscriptParser) Statement() (localctx IStatementContext) {
 			}
 		}
 		{
-			p.SetState(204)
+			p.SetState(225)
 			p.Match(NumscriptParserSOURCE)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -4928,7 +5226,7 @@ func (p *NumscriptParser) Statement() (localctx IStatementContext) {
 			}
 		}
 		{
-			p.SetState(205)
+			p.SetState(226)
 			p.Match(NumscriptParserEQ)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -4936,11 +5234,11 @@ func (p *NumscriptParser) Statement() (localctx IStatementContext) {
 			}
 		}
 		{
-			p.SetState(206)
+			p.SetState(227)
 			p.Source()
 		}
 		{
-			p.SetState(207)
+			p.SetState(228)
 			p.Match(NumscriptParserDESTINATION)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -4948,7 +5246,7 @@ func (p *NumscriptParser) Statement() (localctx IStatementContext) {
 			}
 		}
 		{
-			p.SetState(208)
+			p.SetState(229)
 			p.Match(NumscriptParserEQ)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -4956,11 +5254,11 @@ func (p *NumscriptParser) Statement() (localctx IStatementContext) {
 			}
 		}
 		{
-			p.SetState(209)
+			p.SetState(230)
 			p.Destination()
 		}
 		{
-			p.SetState(210)
+			p.SetState(231)
 			p.Match(NumscriptParserRPARENS)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -4972,7 +5270,7 @@ func (p *NumscriptParser) Statement() (localctx IStatementContext) {
 		localctx = NewSaveStatementContext(p, localctx)
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(212)
+			p.SetState(233)
 			p.Match(NumscriptParserSAVE)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -4980,11 +5278,11 @@ func (p *NumscriptParser) Statement() (localctx IStatementContext) {
 			}
 		}
 		{
-			p.SetState(213)
+			p.SetState(234)
 			p.SentValue()
 		}
 		{
-			p.SetState(214)
+			p.SetState(235)
 			p.Match(NumscriptParserFROM)
 			if p.HasError() {
 				// Recognition error - abort rule
@@ -4992,7 +5290,7 @@ func (p *NumscriptParser) Statement() (localctx IStatementContext) {
 			}
 		}
 		{
-			p.SetState(215)
+			p.SetState(236)
 			p.valueExpr(0)
 		}
 
@@ -5000,7 +5298,7 @@ func (p *NumscriptParser) Statement() (localctx IStatementContext) {
 		localctx = NewFnCallStatementContext(p, localctx)
 		p.EnterOuterAlt(localctx, 3)
 		{
-			p.SetState(217)
+			p.SetState(238)
 			p.FunctionCall()
 		}
 
diff --git a/internal/parser/ast.go b/internal/parser/ast.go
index 7e70de8..6054e02 100644
--- a/internal/parser/ast.go
+++ b/internal/parser/ast.go
@@ -87,6 +87,7 @@ type Source interface {
 }
 
 func (*SourceInorder) source()   {}
+func (*SourceOneof) source()     {}
 func (*SourceAllotment) source() {}
 func (*SourceAccount) source()   {}
 func (*SourceCapped) source()    {}
@@ -101,6 +102,12 @@ type (
 		Range
 		Sources []Source
 	}
+
+	SourceOneof struct {
+		Range
+		Sources []Source
+	}
+
 	SourceAllotment struct {
 		Range
 		Items []SourceAllotmentItem
@@ -143,6 +150,7 @@ type Destination interface {
 
 func (*DestinationAccount) destination()   {}
 func (*DestinationInorder) destination()   {}
+func (*DestinationOneof) destination()     {}
 func (*DestinationAllotment) destination() {}
 
 type (
@@ -152,11 +160,17 @@ type (
 
 	DestinationInorder struct {
 		Range
-		Clauses   []DestinationInorderClause
+		Clauses   []CappedKeptOrDestination
+		Remaining KeptOrDestination
+	}
+
+	DestinationOneof struct {
+		Range
+		Clauses   []CappedKeptOrDestination
 		Remaining KeptOrDestination
 	}
 
-	DestinationInorderClause struct {
+	CappedKeptOrDestination struct {
 		Range
 		Cap ValueExpr
 		To  KeptOrDestination
diff --git a/internal/parser/parser.go b/internal/parser/parser.go
index f188b2d..9fb561f 100644
--- a/internal/parser/parser.go
+++ b/internal/parser/parser.go
@@ -170,6 +170,16 @@ func parseSource(sourceCtx parser.ISourceContext) Source {
 			Sources: sources,
 		}
 
+	case *parser.SrcOneofContext:
+		var sources []Source
+		for _, sourceCtx := range sourceCtx.AllSource() {
+			sources = append(sources, parseSource(sourceCtx))
+		}
+		return &SourceOneof{
+			Range:   range_,
+			Sources: sources,
+		}
+
 	case *parser.SrcAllotmentContext:
 		var items []SourceAllotmentItem
 		for _, itemCtx := range sourceCtx.AllAllotmentClauseSrc() {
@@ -391,7 +401,7 @@ func parseDestination(destCtx parser.IDestinationContext) Destination {
 		}
 
 	case *parser.DestInorderContext:
-		var inorderClauses []DestinationInorderClause
+		var inorderClauses []CappedKeptOrDestination
 		for _, destInorderClause := range destCtx.AllDestinationInOrderClause() {
 			inorderClauses = append(inorderClauses, parseDestinationInorderClause(destInorderClause))
 		}
@@ -402,6 +412,18 @@ func parseDestination(destCtx parser.IDestinationContext) Destination {
 			Remaining: parseKeptOrDestination(destCtx.KeptOrDestination()),
 		}
 
+	case *parser.DestOneofContext:
+		var inorderClauses []CappedKeptOrDestination
+		for _, destInorderClause := range destCtx.AllDestinationInOrderClause() {
+			inorderClauses = append(inorderClauses, parseDestinationInorderClause(destInorderClause))
+		}
+
+		return &DestinationOneof{
+			Range:     range_,
+			Clauses:   inorderClauses,
+			Remaining: parseKeptOrDestination(destCtx.KeptOrDestination()),
+		}
+
 	case *parser.DestAllotmentContext:
 		var items []DestinationAllotmentItem
 		for _, itemCtx := range destCtx.AllAllotmentClauseDest() {
@@ -426,8 +448,8 @@ func parseDestination(destCtx parser.IDestinationContext) Destination {
 
 }
 
-func parseDestinationInorderClause(clauseCtx parser.IDestinationInOrderClauseContext) DestinationInorderClause {
-	return DestinationInorderClause{
+func parseDestinationInorderClause(clauseCtx parser.IDestinationInOrderClauseContext) CappedKeptOrDestination {
+	return CappedKeptOrDestination{
 		Range: ctxToRange(clauseCtx),
 		Cap:   parseValueExpr(clauseCtx.ValueExpr()),
 		To:    parseKeptOrDestination(clauseCtx.KeptOrDestination()),
diff --git a/internal/parser/parser_test.go b/internal/parser/parser_test.go
index e3c7c66..81fa8e0 100644
--- a/internal/parser/parser_test.go
+++ b/internal/parser/parser_test.go
@@ -82,6 +82,15 @@ func TestInorderSource(t *testing.T) {
 	snaps.MatchSnapshot(t, p.Value)
 }
 
+func TestOneofSource(t *testing.T) {
+	p := parser.Parse(`send $amt (
+  source = oneof { @s1 @s2 }
+  destination = @d
+)`)
+	require.Empty(t, p.Errors)
+	snaps.MatchSnapshot(t, p.Value)
+}
+
 func TestNegativeNumberLit(t *testing.T) {
 	p := parser.Parse(`send [EUR/2 -100] (
   source = @src
@@ -104,6 +113,19 @@ func TestInorderDestination(t *testing.T) {
 	assert.Empty(t, p.Errors)
 }
 
+func TestOneofDestination(t *testing.T) {
+	p := parser.Parse(`send $amt (
+	source = @s
+	destination = oneof {
+		max $m1 to @d1
+		max $m2 kept
+		remaining to @d3
+  }
+	)`)
+	require.Empty(t, p.Errors)
+	snaps.MatchSnapshot(t, p.Value)
+}
+
 func TestAllotment(t *testing.T) {
 	p := parser.Parse(`send [EUR/2 100] (
   source = { 1/3 from @s1 }
diff --git a/numscript_test.go b/numscript_test.go
index 38f1831..f1aa0f4 100644
--- a/numscript_test.go
+++ b/numscript_test.go
@@ -97,6 +97,43 @@ send [COIN 100] (
 		store.GetBalancesCalls)
 }
 
+func TestGetBalancesOneof(t *testing.T) {
+	parseResult := numscript.Parse(`
+send [COIN 100] (
+	source = oneof {
+		@a
+		@b
+		@world
+	}
+  	destination = @dest
+)
+`)
+
+	require.Empty(t, parseResult.GetParsingErrors(), "There should not be parsing errors")
+
+	store := ObservableStore{
+		StaticStore: interpreter.StaticStore{
+			Balances: interpreter.Balances{},
+		},
+	}
+	_, err := parseResult.RunWithFeatureFlags(context.Background(), numscript.VariablesMap{
+		"s1": "source1",
+	},
+		&store,
+		map[string]struct{}{"experimental-oneof": {}},
+	)
+	require.Nil(t, err)
+
+	require.Equal(t,
+		[]numscript.BalanceQuery{
+			{
+				"a": {"COIN"},
+				"b": {"COIN"},
+			},
+		},
+		store.GetBalancesCalls)
+}
+
 func TestDoNotGetBalancesTwice(t *testing.T) {
 	parseResult := numscript.Parse(`send [COIN 100] (
 	source = {