https://github.com/iofoundry/ontology/blame/a57540171b0ad2a8c312a0b223876b9ee3f20081/supplychain/SupplyChain.rdf#L1734 Why can't an arbitrary 'material entity' bear a 'material trade item role'? For instance naturally occurring entities?
https://github.com/iofoundry/ontology/blame/a57540171b0ad2a8c312a0b223876b9ee3f20081/supplychain/SupplyChain.rdf#L1734
Why can't an arbitrary 'material entity' bear a 'material trade item role'? For instance naturally occurring entities?