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.

Ex Input:
Category: SUCH GOOD CHEMISTRY 
Clue: A U.S. nuclear weapon using this element, Co, has been termed a doomsday device, as it would wipe out life on Earth

Ex Output:
cobalt


Ex Input:
Category: POP MUSIC RHYME TIME 
Clue: Mr. Vicious' offspring

Ex Output:
sid\'s kids


Ex Input:
Category: POP MUSIC 
Clue: Elton John & Kiki Dee had a No. 1 hit with "Don't Go" doing this

Ex Output:

breaking my heart