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.

Example Input: Category: SOME SCIENCE, SOME NATURE 
Clue: The Hawaiian species of this is also known as the nene
Example Output: a goose

Example Input: Category: FOOD 
Clue: A popular health food, this soybean curd is used to make a variety of dishes & an ice cream substitute
Example Output: tofu

Example Input: Category: TAKE A LETTER 
Clue: Used with an apostrophe, this letter can be a contraction of had, would & did
Example Output:
d