assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_52217  rdfs:label       pharmaceutical   xsd:string  
1          0           graph  obo:CHEBI_52217  oio:id           CHEBI:52217      xsd:string  
1          0           graph  obo:CHEBI_52217  rdfs:subClassOf  obo:CHEBI_33232  _IRI        
1          0           graph  obo:CHEBI_52217  rdf:type         owl:Class        _IRI