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: BEFORE & AFTER 
Clue: Weight-loss program that was the star of TV's "Coach" & the voice of Mr. incredible in "The Incredibles"
answer:
jenny craig t. nelson


question:
Category: AROUND THE LITERARY WORLD 
Clue: This Russian published more than 300 short stories before he wrote his play "The Seagull"
answer:

anton chekhov