assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:10310 IAO:0000115 A meningitis that has_material_basis_in a viral infection. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007638""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://en.wikipedia.org/wiki/Viral_meningitis""}]}"