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.

Input: Consider Input: Category: WHAT SHOULD I "DU"? 
Clue: A philosophical system that seeks to explain all phenomena in terms of 2 distinct principles

Output: dualism


Input: Consider Input: Category: FOREIGN TRAVEL 
Clue: Though its slangy name suggests it goes behind, wear this in front to guard your valuables against theft

Output: a fanny pack


Input: Consider Input: Category: COLLEGE SPORTS TEAM NICKNAMES 
Clue: This Georgetown University sports team nickname may come from a Greek & Latin term meaning "what rocks"


Output: a hoya