assertion  retraction  graph  subject    predicate    object                                                                  datatype    annotation
1          0           graph  DOID:1995  IAO:0000115  A sarcoma and malignant tumor of rectum that is located_in the rectum.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/pubmed/23712252""}]}"