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: POP CULTURE 
Clue: Neil Diamond's 1982 hit "Heartlight" was inspired by this movie

SOLUTION: e.t.

PROBLEM: Category: ADD A LETTER 
Clue: Adding this letter to heritage gives you a nice, secluded retreat

SOLUTION: m

PROBLEM: Category: "AIN" WE GOT FUN 
Clue: Shiites are dominant in this Qatar neighbor

SOLUTION:
bahrain