assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:0080371 IAO:0000115 A sex cord-stromal benign neoplasm that arises from the testis. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www.pathologyoutlines.com/topic/testissexcordgeneral.html""}]}"