assertion  retraction  graph  subject       predicate    object                                                                                                                    datatype    annotation
1          0           graph  DOID:0050613  IAO:0000115  An in situ carcinoma located_in the surface epithelium of the bile duct that most commonly develops into adenocarcinoma.  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007638""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://en.wikipedia.org/wiki/Cholangiocarcinoma""}]}"