assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:4547 IAO:0000115 An adult sarcoma of soft tissue and mesenchymal chondrosarcoma that is located_in the cartilage. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://sarcomahelp.org/learning_center/mesenchymal_chondrosarcoma.html""}]}"