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 consistency, answers should be in all lower cased letters.
question:
Category: "FALL" 
Clue: This Poe tale appropriately begins in the fall, on a "dull, dark and soundless day"
answer:
"the fall of the house of usher"


question:
Category: DUMB GUYS' GREATEST INVENTIONS 
Clue: Dumb guys think it's cool they get to slide their own credit card at the store; even cooler? This word for "slide"
answer:
swipe


question:
Category: A STICKY SITUATION 
Clue: In one of his bits, David Letterman stuck to a wall by wearing a suit made of this fastening material
answer:

velcro