assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:3691 IAO:0000115 An anus carcinoma that derives_from epithelial cells of glandular origin located_in the anal colloid. 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/Adenocarcinoma""}]}"