Question: When did the Weimar Republic release De-Weimarer Republik-Teil-2-article.ogg?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q41304 p:P989 ?s . ?s ps:P989 ?x filter(contains(?x,'De-Weimarer Republik-Teil-2-article.ogg')) . ?s pq:P585 ?value}