assertion  retraction  graph  subject    predicate    object                                                                      datatype    annotation
1          0           graph  DOID:4226  IAO:0000115  An endometrial stromal tumor that has_material_basis_in connective tissue.  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/Endometrial_stromal_sarcoma""}]}"