assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:5612 IAO:0000115 A central nervous system cancer that is located_in the spinal cord. It is mostly formed from metastases from primary cancers elsewhere (commonly breast, prostate, and lung cancer). 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/Spinal_tumor""}]}"