assertion  retraction  graph  subject          predicate        object                   datatype    annotation
1          0           graph  obo:CHEBI_50996  rdfs:label       tertiary amino compound  xsd:string  
1          0           graph  obo:CHEBI_50996  oio:id           CHEBI:50996              xsd:string  
1          0           graph  obo:CHEBI_50996  rdfs:subClassOf  obo:CHEBI_50047          _IRI        
1          0           graph  obo:CHEBI_50996  rdf:type         owl:Class                _IRI