instruction:
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.
question:
Category: HOLIDAYS 
Clue: "(Hi, I'm Chuck Woolery)  You can send a card to your sweetheart or anyone in your 4th grade class on this February holiday"
answer:
valentine\'s day


question:
Category: CORPORATE AMERICA 
Clue: Every year, this company delivers more than a billion packages, more than the Post Office
answer:
ups


question:
Category: AMERICAN LITERATURE 
Clue: Thomas Pynchon followed "V" with this novel about the V-2 rocket
answer:

gravity\'s rainbow