assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_33595  rdfs:label       cyclic compound  xsd:string  
1          0           graph  obo:CHEBI_33595  oio:id           CHEBI:33595      xsd:string  
1          0           graph  obo:CHEBI_33595  rdfs:subClassOf  obo:CHEBI_25367  _IRI        
1          0           graph  obo:CHEBI_33595  rdf:type         owl:Class        _IRI