assertion  retraction  graph  subject          predicate        object             datatype    annotation
1          0           graph  obo:CHEBI_51323  rdfs:label       cinchona alkaloid  xsd:string  
1          0           graph  obo:CHEBI_51323  oio:id           CHEBI:51323        xsd:string  
1          0           graph  obo:CHEBI_51323  rdfs:subClassOf  obo:CHEBI_26509    _IRI        
1          0           graph  obo:CHEBI_51323  rdf:type         owl:Class          _IRI