assertion  retraction  graph  subject     predicate        object       datatype    annotation
1          0           graph  DOID:14654  rdfs:label       prostatitis  xsd:string  
1          0           graph  DOID:14654  rdfs:subClassOf  DOID:48      _IRI        
1          0           graph  DOID:14654  rdf:type         owl:Class    _IRI