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.

Input: Consider Input: Category: WHO'S THE MRS.?
Clue: Mrs. James Carville

Output: matalin

Input: Consider Input: Category: IT'S NOT SO
Clue: Though 4,500 miles long, it's not visible from space, as its materials are similar in color to the surrounding soil

Output: the great wall of china

Input: Consider Input: Category: A PIECE OF CAKE
Clue: A sponge cake without egg yolks or butter, it's fat free, pure white, &, as its name implies, a little piece of heaven
Output: angel food cake