assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_24913  rdfs:label       isoprenoid       xsd:string  
1          0           graph  obo:CHEBI_24913  oio:id           CHEBI:24913      xsd:string  
1          0           graph  obo:CHEBI_24913  rdfs:subClassOf  obo:CHEBI_18059  _IRI        
1          0           graph  obo:CHEBI_24913  rdf:type         owl:Class        _IRI