You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

[EX Q]: Category: MILITARY MATTERS 
Clue: Major Esterhazy was probably the real spy for the Germans in this French "affair" that began in 1894
[EX A]: dreyfus affair

[EX Q]: Category: BALLET 
Clue: "Filling Station" features dancing truck drivers & this 1930s dance whose name is New York City's nickname
[EX A]: the big apple

[EX Q]: Category: PLAYING THE PALACE 
Clue: In 1825 John Nash used his beautiful mind to remodel this London royal residence
[EX A]:
buckingham palace