assertion retraction graph subject predicate object datatype annotation 1 0 graph obo:SYMP_0000434 IAO:0000115 A skin and integumentary tissue symptom that is characterized by raised red skin wheals (welts) commonly caused by an allergic reaction with wheals that may vary in size from about 5 mm (0.2 inches) in diameter to the size of a dinner plate that are described as severely itchy a stingnig or burning sensation, and having a pale border. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://en.wikipedia.org/wiki/Urticaria""}]}"