assertion  retraction  graph  subject          predicate        object             datatype    annotation
1          0           graph  obo:CHEBI_35681  rdfs:label       secondary alcohol  xsd:string  
1          0           graph  obo:CHEBI_35681  oio:id           CHEBI:35681        xsd:string  
1          0           graph  obo:CHEBI_35681  rdfs:subClassOf  obo:CHEBI_30879    _IRI        
1          0           graph  obo:CHEBI_35681  rdf:type         owl:Class          _IRI