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 consistency, answers should be in all lower cased letters.
PROBLEM: Category: "HEAD" LINES 
Clue: This phrase may precede "above the rest" or "shampoo"

SOLUTION: head and shoulders

PROBLEM: Category: I'M NOT A DOCTOR, BUT I PLAY ONE ON TV 
Clue: Dr. Benjamin Franklin Pierce

SOLUTION: alan alda

PROBLEM: Category: BAKING 3s 
Clue: 3 basic types of this ingredient are all-purpose, cake & bread

SOLUTION:
flour