assertion  retraction  graph  subject          predicate        object                 datatype    annotation
1          0           graph  obo:CHEBI_36963  rdfs:label       organooxygen compound  xsd:string  
1          0           graph  obo:CHEBI_36963  oio:id           CHEBI:36963            xsd:string  
1          0           graph  obo:CHEBI_36963  rdfs:subClassOf  obo:CHEBI_36962        _IRI        
1          0           graph  obo:CHEBI_36963  rdfs:subClassOf  obo:CHEBI_25806        _IRI        
1          0           graph  obo:CHEBI_36963  rdf:type         owl:Class              _IRI