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.

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

Example Input: Category: BUSINESS & INDUSTRY 
Clue: This package delivery firm was founded in 1907 as the American Messenger Company
Example Output: ups

Example Input: Category: -O-O-O- YES! 
Clue: In October 1973 this show debuted with Tom Snyder as its host
Example Output:
tomorrow