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 consistency, answers should be in all lower cased letters.

Q: Category: MOVIE MR. & MRS. 
Clue: It's the title couple played by Brad Pitt & Angelina Jolie in a 2005 movie

A: mr. & mrs. smith
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Q: Category: NATIONAL HISTORIC SITES 
Clue: The armory in this Mass. town was  America's small arms manufacturer for nearly 200 years

A: springfield
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Q: Category: THE EIGHTH 
Clue: Louis IX of France died during the eighth of these campaigns

A:
crusades
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