assertion  retraction  graph  subject           predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_421707  rdfs:label       abacavir         xsd:string  
1          0           graph  obo:CHEBI_421707  oio:id           CHEBI:421707     xsd:string  
1          0           graph  obo:CHEBI_421707  rdfs:subClassOf  obo:CHEBI_38001  _IRI        
1          0           graph  obo:CHEBI_421707  rdf:type         owl:Class        _IRI