@prefix pwdr: . @prefix dbpedia: . @prefix ns2: . dbpedia:List_of_national_and_state_libraries pwdr:describedby ns2:Aden , ns2:German_National_Library_of_Economics , ns2:Cantonal_and_University_Library_of_Lausanne , ns2:Jordan , ns2:Library_of_Congress , ns2:Castries , ns2:Pyongyang . @prefix dbpedia-owl: . dbpedia:List_of_national_and_state_libraries dbpedia-owl:wikiPageWikiLink dbpedia:German_National_Library_of_Economics , dbpedia:Jordan , dbpedia:Castries , dbpedia:Cantonal_and_University_Library_of_Lausanne , dbpedia:Aden , dbpedia:Library_of_Congress , dbpedia:Pyongyang .