Input: Article: The Warsaw Pact (formally, the Treaty of Friendship, Co-operation, and Mutual Assistance, sometimes, informally WarPac, akin in format to NATO) was a collective defense treaty among Soviet Union and seven Soviet satellite states in Central and Eastern Europe in existence during the Cold War. The Warsaw Pact was the military complement to the Council for Mutual Economic Assistance (CoMEcon), the regional economic organization for the communist states of Central and Eastern Europe. The Warsaw Pact was created in reaction to the integration of West Germany into NATO in 1955 per the Paris Pacts of 1954, but it is also considered to have been motivated by Soviet desires to maintain control over military forces in Central and Eastern Europe.

Now answer this question: The acceptance of which country into NATO prompted the formation of the Warsaw Pact?

Output: West Germany

Input: Article: Other notable Old Etonians include scientists Robert Boyle, John Maynard Smith, J. B. S. Haldane, Stephen Wolfram and the 2012 Nobel Prize in Physiology or Medicine winner, John Gurdon; Beau Brummell; economists John Maynard Keynes and Richard Layard; Antarctic explorer Lawrence Oates; politician Alan Clark; entrepreneur, charity organiser and partner of Adele, Simon Konecki; cricket commentator Henry Blofeld; explorer Sir Ranulph Fiennes; adventurer Bear Grylls; composers Thomas Arne, George Butterworth, Roger Quilter, Frederick Septimus Kelly, Donald Tovey, Thomas Dunhill, Lord Berners, Victor Hely-Hutchinson, and Peter Warlock (Philip Heseltine); Hubert Parry, who wrote the song Jerusalem and the coronation anthem I was glad; and musicians Frank Turner and Humphrey Lyttelton.

Now answer this question: Which Antarctic explorer attended Eton?

Output: Lawrence Oates

Input: Article: Later that summer, the Russians invaded Memel with 75,000 troops. Memel had one of the strongest fortresses in Prussia. However, after five days of artillery bombardment the Russian army was able to storm it. The Russians then used Memel as a base to invade East Prussia and defeated a smaller Prussian force in the fiercely contested Battle of Gross-Jagersdorf on 30 August 1757. However, it was not yet able to take Konigsberg and retreated soon afterward. Still, it was a new threat to Prussia. Not only was Frederick forced to break off his invasion of Bohemia, he was now forced to withdraw further into Prussian-controlled territory. His defeats on the battlefield brought still more opportunist nations into the war. Sweden declared war on Prussia and invaded Pomerania with 17,000 men. Sweden felt this small army was all that was needed to occupy Pomerania and felt the Swedish army would not need to engage with the Prussians because the Prussians were occupied on so many other fronts.

Now answer this question: How did the Russians used the captured Memel?

Output:
used Memel as a base to invade East Prussia