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 consistency, answers should be in all lower cased letters.

Input: Consider Input: Category: ADVENTURES IN LITERATURE 
Clue: The epilogue of this novel says, "I have now told the singular, but veracious story of the opera ghost"

Output: phantom of the opera


Input: Consider Input: Category: NATIONAL HISTORIC SITES 
Clue: The armory in this Mass. town was  America's small arms manufacturer for nearly 200 years

Output: springfield


Input: Consider Input: Category: THAT'S RARE 
Clue: This green gem is actually a rare variety of beryl


Output: emerald


