assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_23443  rdfs:label       cyclic amide     xsd:string  
1          0           graph  obo:CHEBI_23443  oio:id           CHEBI:23443      xsd:string  
1          0           graph  obo:CHEBI_23443  rdfs:subClassOf  obo:CHEBI_32988  _IRI        
1          0           graph  obo:CHEBI_23443  rdf:type         owl:Class        _IRI