assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:8893 IAO:0000115 A skin disease that is characterized by patches of thick red skin and silvery scales. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007637""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.cdc.gov/psoriasis/index.htm""}]}"