assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:1984 IAO:0000115 An intestinal benign neoplasm located_in the rectum. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007646""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/books/NBK6994/""}]}"