assertion  retraction  graph  subject         predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_6030  rdfs:label       isoniazide       xsd:string  
1          0           graph  obo:CHEBI_6030  oio:id           CHEBI:6030       xsd:string  
1          0           graph  obo:CHEBI_6030  rdfs:subClassOf  obo:CHEBI_35363  _IRI        
1          0           graph  obo:CHEBI_6030  rdf:type         owl:Class        _IRI