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: AIRLINE AD SLOGANS 
Clue: "The world's favourite airline"
Example Output: british airways

Example Input: Category: WHEN THINGS GO WRONG 
Clue: Infection with the H. pylori bacterium is probably responsible for most peptic these
Example Output:
ulcers