assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_53213  rdfs:label       diisocyanate     xsd:string  
1          0           graph  obo:CHEBI_53213  oio:id           CHEBI:53213      xsd:string  
1          0           graph  obo:CHEBI_53213  rdfs:subClassOf  obo:CHEBI_53212  _IRI        
1          0           graph  obo:CHEBI_53213  rdf:type         owl:Class        _IRI