assertion  retraction  graph  subject       predicate    object                                                                                                                                       datatype    annotation
1          0           graph  DOID:0050623  IAO:0000115  A urinary system benign neoplasm located_in the bladder including papillomas, leiomyomas, fibromas, hemangiomas, neurofibromas and lipomas.  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007645""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1398414/""}]}"