assertion  retraction  graph  subject     predicate            object                 datatype    annotation
1          0           graph  DOID:11132  rdfs:label           prostatic hypertrophy  xsd:string  
1          0           graph  DOID:11132  oio:id               DOID:11132             xsd:string  
1          0           graph  DOID:11132  oio:hasOBONamespace  disease_ontology       xsd:string  
1          0           graph  DOID:11132  rdfs:subClassOf      DOID:47                _IRI        
1          0           graph  DOID:11132  rdf:type             owl:Class              _IRI