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: WE GET LETTERS 
Clue: This cable television network uses an exclamation point in its name
Example Output: e!

Example Input: Category: SUBWAY STOPS 
Clue: You can ride one line in this world capital from Kifissia to Pireas
Example Output: athens

Example Input: Category: ARTFUL KNIGHTS 
Clue: Sir Cecil Beaton's subjects for these included members of the Royal Family & models for Vogue Magazine
Example Output:
portraits