assertion retraction graph subject predicate object datatype annotation 1 0 graph oio:hasOBONamespace rdfs:label has_obo_namespace xsd:string 1 0 graph oio:hasOBONamespace rdfs:comment disease_ontology xsd:string 1 0 graph oio:hasOBONamespace rdf:type owl:AnnotationProperty _IRI 1 0 graph oio:hasOBONamespace IAO:0000115 Name space of the ontology. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www.geneontology.org/formats/oboInOwl#hasOBONamespace""}]}"