assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:10149 IAO:0000115 A bone cancer that is manifested in the long bones of the lower limb. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www.wrongdiagnosis.com/medical/malignant_neoplasm_of_long_bones_of_lower_limb.htm""}]}"