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: FICTIONAL DETECTIVES 
Clue: "The House Without a Key" was the first case solved by this Chinese detective
Example Output: charlie chan

Example Input: Category: THE ENVIRONMENT 
Clue: This word means catching an unsustainably high number of tuna & cod
Example Output: overfishing

Example Input: Category: EXPO 
Clue: A 21-hour production of this Goethe tale was a highlight of the 2000 expo in Hanover, Germany
Example Output:
faust