assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_55370  rdfs:label       imidazolidinone  xsd:string  
1          0           graph  obo:CHEBI_55370  oio:id           CHEBI:55370      xsd:string  
1          0           graph  obo:CHEBI_55370  rdfs:subClassOf  obo:CHEBI_38261  _IRI        
1          0           graph  obo:CHEBI_55370  rdf:type         owl:Class        _IRI