assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:3672 IAO:0000115 A childhood kidney neoplasm that is located_in the kidney, liver, muscle, heart, lung, soft tissues, skin and central nervous system. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://rarediseases.info.nih.gov/diseases/7572/rhabdoid-tumor""}]}"