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:Bb a hito:Classification; dct:source ; rdfs:label "Blue Book classification"@en; rdfs:member hito:BbApplicationSystemTypeCatalogue, hito:BbFeatureCatalogue, hito:BbFunctionCatalogue.