assertion  retraction  graph  subject    predicate            object                        datatype    annotation
1          0           graph  DOID:8110  rdfs:label           periampullary adenocarcinoma  xsd:string  
1          0           graph  DOID:8110  oio:inSubset         obo:doid#NCIthesaurus         _IRI        
1          0           graph  DOID:8110  oio:id               DOID:8110                     xsd:string  
1          0           graph  DOID:8110  oio:hasOBONamespace  disease_ontology              xsd:string  
1          0           graph  DOID:8110  oio:hasDbXref        UMLS_CUI:C1335377             xsd:string  
1          0           graph  DOID:8110  oio:hasDbXref        NCI:C27322                    xsd:string  
1          0           graph  DOID:8110  rdfs:subClassOf      DOID:3502                     _IRI        
1          0           graph  DOID:8110  rdf:type             owl:Class                     _IRI