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.

Category: PRESIDENTIAL FIRSTS 
Clue: 1st president to refuse a 3rd term
george washington

Category: CAPTURE THE FLAG 
Clue: Afghanistan's flag has a mosque in a wreath made of stalks of this grain
wheat

Category: THE ADVENTURES OF HUCKLEBERRY FINN 
Clue: This award-winning musical composed by Roger Miller was based on the book

big river