assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_53212  rdfs:label       isocyanates      xsd:string  
1          0           graph  obo:CHEBI_53212  oio:id           CHEBI:53212      xsd:string  
1          0           graph  obo:CHEBI_53212  rdfs:subClassOf  obo:CHEBI_36963  _IRI        
1          0           graph  obo:CHEBI_53212  rdfs:subClassOf  obo:CHEBI_35352  _IRI        
1          0           graph  obo:CHEBI_53212  rdf:type         owl:Class        _IRI