assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:10040 IAO:0000115 A skin melanoma that arises from the upper or lower eyelid. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://eyewiki.aao.org/Malignant_Melanoma_of_the_Eyelid""}]}"