assertion  retraction  graph  subject    predicate    object                                                                                                                                                                                             datatype    annotation
1          0           graph  DOID:4284  IAO:0000115  An anal carcinoma that has_material_basis_in abnormally proliferating cells derives_from epithelial cells and is located_in the anal margin (where the canal meets the outside skin at the anus).  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007637""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www.cancer.org/docroot/CRI/content/CRI_2_4_1X_What_is_anal_cancer_47.asp""}]}"