assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:4305 IAO:0000115 A benign giant cell tumor that results_in the presence of multinucleated giant cells. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007638""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://en.wikipedia.org/wiki/Giant_cell_tumor_of_bone""}]}"