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: PAINT IT "BLACK" 
Clue: During the War of 1812, this Sauk Indian chief & about 500 of his warriors fought for the British
[A]: black hawk


[Q]: Category: SUN 
Clue: In the main reaction making the sun's energy, 2 of these nuclear particles fuse & one becomes a neutron
[A]: protons


[Q]: Category: DARTH VADER, D.D.S. 
Clue: "Use the floss, Luke"; & don't whine about it--the ADA says you only have to do it this many times a day
[A]:
once