assertion  retraction  graph  subject    predicate            object                                      datatype    annotation
1          0           graph  DOID:5308  rdfs:label           ampulla of Vater clear cell adenocarcinoma  xsd:string  
1          0           graph  DOID:5308  oio:inSubset         obo:doid#NCIthesaurus                       _IRI        
1          0           graph  DOID:5308  oio:id               DOID:5308                                   xsd:string  
1          0           graph  DOID:5308  oio:hasOBONamespace  disease_ontology                            xsd:string  
1          0           graph  DOID:5308  oio:hasDbXref        UMLS_CUI:C1332246                           xsd:string  
1          0           graph  DOID:5308  oio:hasDbXref        NCI:C27414                                  xsd:string  
1          0           graph  DOID:5308  rdfs:subClassOf      DOID:3502                                   _IRI        
1          0           graph  DOID:5308  rdf:type             owl:Class                                   _IRI