assertion  retraction  graph  subject          predicate        object                             datatype    annotation
1          0           graph  obo:CHEBI_53218  rdfs:label       diphenylmethane-4,4'-diisocyanate  xsd:string  
1          0           graph  obo:CHEBI_53218  oio:id           CHEBI:53218                        xsd:string  
1          0           graph  obo:CHEBI_53218  rdfs:subClassOf  obo:CHEBI_53213                    _IRI        
1          0           graph  obo:CHEBI_53218  rdf:type         owl:Class                          _IRI