assertion  retraction  graph  subject         predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_7939  rdfs:label       parthenolide     xsd:string  
1          0           graph  obo:CHEBI_7939  oio:id           CHEBI:7939       xsd:string  
1          0           graph  obo:CHEBI_7939  rdfs:subClassOf  obo:CHEBI_37667  _IRI        
1          0           graph  obo:CHEBI_7939  rdf:type         owl:Class        _IRI