assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:5373 rdfs:label retroperitoneal hemangiopericytoma xsd:string 1 0 graph DOID:5373 oio:inSubset obo:doid#NCIthesaurus _IRI 1 0 graph DOID:5373 oio:id DOID:5373 xsd:string 1 0 graph DOID:5373 oio:hasOBONamespace disease_ontology xsd:string 1 0 graph DOID:5373 oio:hasDbXref UMLS_CUI:C1335777 xsd:string 1 0 graph DOID:5373 oio:hasDbXref NCI:C5386 xsd:string 1 0 graph DOID:5373 rdfs:subClassOf DOID:264 _IRI 1 0 graph DOID:5373 rdf:type owl:Class _IRI