PREFIX ov: PREFIX owl: PREFIX skos: PREFIX rdfs: PREFIX dbr: PREFIX xsd: PREFIX sh: PREFIX rdf: PREFIX vann: PREFIX dc: PREFIX dct: PREFIX hito: hito:IHE_XDS a hito:Interoperability; hito:subStandardOf hito:IHE; dct:source ; rdfs:comment "Cross-Enterprise Document Sharing"@en; rdfs:label "IHE-XDS"@en.