assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:0040023 IAO:0000115 A cephalosporin allergy that has_allergic_trigger cefaclor. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/pubmed/12569987""}],""rdfs:comment"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""IEDB:RV""}]}"