assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:0080809 IAO:0000115 An asthma that is characterized by the development of persistent airway inflammation and recurrent attacks of breathlessness and wheezing, which vary in severity and frequency. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/books/NBK7223/""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.nhlbi.nih.gov/health-topics/asthma""}]}"