assertion retraction graph subject predicate object datatype annotation 1 0 graph NCBITaxon:2484686 rdfs:label Hypanus americanus (southern stingray) xsd:string 1 0 graph NCBITaxon:2484686 rdfs:subClassOf OBI:0100026 _IRI 1 0 graph NCBITaxon:2484686 rdf:type owl:Class _IRI