assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_26513  rdfs:label       quinolines       xsd:string  
1          0           graph  obo:CHEBI_26513  oio:id           CHEBI:26513      xsd:string  
1          0           graph  obo:CHEBI_26513  rdfs:subClassOf  obo:CHEBI_38101  _IRI        
1          0           graph  obo:CHEBI_26513  rdfs:subClassOf  obo:CHEBI_33659  _IRI        
1          0           graph  obo:CHEBI_26513  rdf:type         owl:Class        _IRI