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 Q]: Category: WINE 
Clue: The Douro Valley in this country is an important port producer
[EX A]: portugal

[EX Q]: Category: INNOVATORS 
Clue: Mr. Alter, who designed a type of catamaran or "cat", goes by this first name
[EX A]: hobie

[EX Q]: Category: MATH 
Clue: It's a quarter of a circle or one of four divisions of a plane
[EX A]:
a quadrant