assertion  retraction  graph  subject          predicate        object                datatype    annotation
1          0           graph  obo:CHEBI_33598  rdfs:label       carbocyclic compound  xsd:string  
1          0           graph  obo:CHEBI_33598  oio:id           CHEBI:33598           xsd:string  
1          0           graph  obo:CHEBI_33598  rdfs:subClassOf  obo:CHEBI_33832       _IRI        
1          0           graph  obo:CHEBI_33598  rdfs:subClassOf  obo:CHEBI_33597       _IRI        
1          0           graph  obo:CHEBI_33598  rdf:type         owl:Class             _IRI