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.

Example Input: Category: ANCIENT ROME
Clue: This church faced periodic persecution for 300 years, until Constantine's conversion
Example Output: christian church

Example Input: Category: POWER TO THE PEOPLE
Clue: Citizen's Eco-Drive Thermo is one of these powered by the heat of your body
Example Output: wristwatch

Example Input: Category: LEAF ME
Clue: The Macrocystis genus of this seaweed can grow fronds up to 200 feet long
Example Output:
kelp