assertion  retraction  graph  subject    predicate            object                  datatype    annotation
1          0           graph  DOID:8223  rdfs:label           penile urethral cancer  xsd:string  
1          0           graph  DOID:8223  oio:inSubset         obo:doid#NCIthesaurus   _IRI        
1          0           graph  DOID:8223  oio:id               DOID:8223               xsd:string  
1          0           graph  DOID:8223  oio:hasOBONamespace  disease_ontology        xsd:string  
1          0           graph  DOID:8223  oio:hasDbXref        UMLS_CUI:C1518950       xsd:string  
1          0           graph  DOID:8223  oio:hasDbXref        NCI:C39868              xsd:string  
1          0           graph  DOID:8223  rdfs:subClassOf      DOID:736                _IRI        
1          0           graph  DOID:8223  rdf:type             owl:Class               _IRI