assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:0080368 IAO:0000115 A reproductive organ benign neoplasm that arises in the ovary or testis and that is composed of granulosa cells, Leydig cells, Sertoli cells, and/or fibroblasts. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.cancer.gov/publications/dictionaries/cancer-terms/def/sex-cord-stromal-tumor""}]}"