assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_23666  rdfs:label       diamine          xsd:string  
1          0           graph  obo:CHEBI_23666  oio:id           CHEBI:23666      xsd:string  
1          0           graph  obo:CHEBI_23666  rdfs:subClassOf  obo:CHEBI_88061  _IRI        
1          0           graph  obo:CHEBI_23666  rdf:type         owl:Class        _IRI