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.

Ex Input:
Category: CAN'T SMILE WITHOUT YOU
Clue: It's the hard outer layer of a tooth

Ex Output:
enamel

Ex Input:
Category: THE NEAREST
Clue: ...of your 4 limbs to your heart is this one

Ex Output:
your left arm

Ex Input:
Category: PAPER
Clue: The test named for this chemical paper has one decisive factor

Ex Output:
litmus paper