assertion  retraction  graph  subject    predicate            object                     datatype    annotation
1          0           graph  DOID:4512  rdfs:label           conventional angiosarcoma  xsd:string  
1          0           graph  DOID:4512  oio:inSubset         obo:doid#NCIthesaurus      _IRI        
1          0           graph  DOID:4512  oio:id               DOID:4512                  xsd:string  
1          0           graph  DOID:4512  oio:hasOBONamespace  disease_ontology           xsd:string  
1          0           graph  DOID:4512  oio:hasDbXref        UMLS_CUI:C1333155          xsd:string  
1          0           graph  DOID:4512  oio:hasDbXref        NCI:C9426                  xsd:string  
1          0           graph  DOID:4512  rdfs:subClassOf      DOID:0001816               _IRI        
1          0           graph  DOID:4512  rdf:type             owl:Class                  _IRI