assertion  retraction  graph  subject     predicate            object                 datatype    annotation
1          0           graph  DOID:60006  rdfs:label           benign vascular tumor  xsd:string  
1          0           graph  DOID:60006  oio:id               DOID:60006             xsd:string  
1          0           graph  DOID:60006  oio:hasOBONamespace  disease_ontology       xsd:string  
1          0           graph  DOID:60006  rdfs:subClassOf      DOID:0060091           _IRI        
1          0           graph  DOID:60006  rdf:type             owl:Class              _IRI