assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_76224  rdfs:label       aromatic ketone  xsd:string  
1          0           graph  obo:CHEBI_76224  oio:id           CHEBI:76224      xsd:string  
1          0           graph  obo:CHEBI_76224  rdfs:subClassOf  obo:CHEBI_17087  _IRI        
1          0           graph  obo:CHEBI_76224  rdf:type         owl:Class        _IRI