@prefix pwdr: . @prefix dbpedia: . @prefix ns2: . dbpedia:Document_classification pwdr:describedby ns2:Information_science , ns2:Routing , ns2:Language_identification . @prefix dbpedia-owl: . dbpedia:Document_classification dbpedia-owl:wikiPageWikiLink dbpedia:Routing , dbpedia:Information_science , dbpedia:Language_identification .