assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:4757 IAO:0000115 A sex cord-gonadal stromal tumor that is located_in the testis. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007636""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://ncit.nci.nih.gov/ncitbrowser/pages/concept_details.jsf?dictionary=NCI_Thesaurus&version=18.10e&code=C6358&ns=ncit&type=relationship&key=null&b=1&n=0&vse=null""}]}"