assertion  retraction  graph  subject    predicate    object                                                                                           datatype    annotation
1          0           graph  DOID:4013  IAO:0000115  An urethra cancer that is characterized by cancer cells forming in the renal pelvis and ureter.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/31950597/""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/9730148/""}]}"