assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_23048  rdfs:label       carvones         xsd:string  
1          0           graph  obo:CHEBI_23048  oio:id           CHEBI:23048      xsd:string  
1          0           graph  obo:CHEBI_23048  rdfs:subClassOf  obo:CHEBI_25186  _IRI        
1          0           graph  obo:CHEBI_23048  rdf:type         owl:Class        _IRI