assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:3113 IAO:0000115 A carcinoma that is derives_from epithelial cells with finger like projections. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://breastcancer.about.com/od/types/p/papillary_ca.htm""}]}"