TASK DEFINITION: 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.
PROBLEM: Category: PRESIDENTIAL NICKNAMES 
Clue: "Butcher from Galena"

SOLUTION: grant

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

SOLUTION: protons

PROBLEM: Category: CITIES 
Clue: It's the largest Florida city named after a guy named Andrew

SOLUTION:
jacksonville