assertion retraction graph subject predicate object datatype annotation 1 0 graph NCBITaxon:11709 rdfs:label Human immunodeficiency virus 2 xsd:string 1 0 graph NCBITaxon:11709 rdfs:subClassOf OBI:0100026 _IRI 1 0 graph NCBITaxon:11709 rdf:type owl:Class _IRI