assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_37668  rdfs:label       terpene lactone  xsd:string  
1          0           graph  obo:CHEBI_37668  oio:id           CHEBI:37668      xsd:string  
1          0           graph  obo:CHEBI_37668  rdfs:subClassOf  obo:CHEBI_26873  _IRI        
1          0           graph  obo:CHEBI_37668  rdfs:subClassOf  obo:CHEBI_25000  _IRI        
1          0           graph  obo:CHEBI_37668  rdf:type         owl:Class        _IRI