Context and question: Because the duchy was outside of the core Holy Roman Empire, the prince-electors of Brandenburg were able to proclaim themselves King of Prussia beginning in 1701. After the annexation of most of western Royal Prussia in the First Partition of the Polish-Lithuanian Commonwealth in 1772, eastern (ducal) Prussia was connected by land with the rest of the Prussian state and was reorganized as a province the following year (1773). Between 1829 and 1878, the Province of East Prussia was joined with West Prussia to form the Province of Prussia.
In what year was the Holy Roman Empire founded?
Answer: unanswerable
Context and question: In response to concerns that clubs were increasingly passing over young English players in favour of foreign players, in 1999, the Home Office tightened its rules for granting work permits to players from countries outside of the European Union. A non-EU player applying for the permit must have played for his country in at least 75 per cent of its competitive 'A' team matches for which he was available for selection during the previous two years, and his country must have averaged at least 70th place in the official FIFA world rankings over the previous two years. If a player does not meet those criteria, the club wishing to sign him may appeal.
Which entity tightened its rules in response to concerns about the clubs passing over British players?
Answer: unanswerable
Context and question: An unexpected adverse effect of daylight saving time may lie in the fact that an extra part of morning rush hour traffic occurs before dawn and traffic emissions then cause higher air pollution than during daylight hours.
What kind of pollution is caused by emissions from cars while they're sitting in traffic?
Answer:
air pollution