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: HEAVY MACHINERY 
Clue: By definition it's a machine that gives a surface an even degree of slope
answer:
grader


question:
Category: LITERATURE 
Clue: We wonder what his grandfather, the adding machine inventor, would have thought of "Naked Lunch"
answer:
william s. burroughs


question:
Category: CARMEN 
Clue: It's the capital city where "Carmen" composer Georges Bizet was born in 1838
answer:

paris