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.

Ex Input:
Category: POP "I" 
Clue: We have a feeling you'll know that it was the first single from Jewel's "0304" CD

Ex Output:
intuition


Ex Input:
Category: ANIMALS 
Clue: These mollusks, not oysters, are the most common source for freshwater pearls

Ex Output:
mussels


Ex Input:
Category: PERIOD 
Clue: A period is one of 4 major units of geologic time; these are the other 3, & they all start with "E"

Ex Output:

eon, era & epoch