Context: Czech, the official language of the Czech Republic (a member of the European Union since 2004), is one of the EU's official languages and the 2012 Eurobarometer survey found that Czech was the foreign language most often used in Slovakia. Economist Jonathan van Parys collected data on language knowledge in Europe for the 2012 European Day of Languages. The five countries with the greatest use of Czech were the Czech Republic (98.77 percent), Slovakia (24.86 percent), Portugal (1.93 percent), Poland (0.98 percent) and Germany (0.47 percent).

Question: What is the official language of the Czech republic?
Answer: Czech

Question: How long has the Czech Republic been a member of the European Union?
Answer: since 2004

Question: What distinction does Czech have in Slovakia?
Answer: foreign language most often used

Question: Who collected data on language knowledge in Europe for the 2012 European Day of Languages?
Answer: Jonathan van Parys

Question: Of the five countries with the greatest use of Czech, which country had the lowest percent of use?
Answer: Germany

Question: How long has Slovakia been a member of the EU?
Answer: Unanswerable

Question: What group is German an official language of?
Answer: Unanswerable

Question: What survey showed German as the foreign language used most often in Poland?
Answer: Unanswerable

Question: What did the EU collect for the European Day of Languages in 2004?
Answer: Unanswerable

Question: What percentage of people in Portugal speak German?
Answer: Unanswerable