assertion  retraction  graph  subject    predicate            object                                     datatype    annotation
1          0           graph  DOID:3501  rdfs:label           ampullary signet ring cell adenocarcinoma  xsd:string  
1          0           graph  DOID:3501  oio:inSubset         obo:doid#NCIthesaurus                      _IRI        
1          0           graph  DOID:3501  oio:id               DOID:3501                                  xsd:string  
1          0           graph  DOID:3501  oio:hasOBONamespace  disease_ontology                           xsd:string  
1          0           graph  DOID:3501  oio:hasExactSynonym  ampullary signet ring cell carcinoma       @en         
1          0           graph  DOID:3501  oio:hasDbXref        UMLS_CUI:C1332249                          xsd:string  
1          0           graph  DOID:3501  oio:hasDbXref        NCI:C6656                                  xsd:string  
1          0           graph  DOID:3501  rdfs:subClassOf      DOID:3502                                  _IRI        
1          0           graph  DOID:3501  rdf:type             owl:Class                                  _IRI