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.

Q: Category: ALL ABOUT PRESIDENTS 
Clue: I might worry about hanging around with him--he was nicknamed the "Hangman of Buffalo"

A: grover cleveland
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Q: Category: THE ROTARY CLUB 
Clue: On an airplane they're "fixed"; on a helicopter they're actually "rotary"

A: wings
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Q: Category: THE CRUSADES 
Clue: This colorful-bearded Holy Roman Emperor drowned in 1190 on his way to retake Jerusalem

A:
frederick barbarossa
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