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: SPORTS AUTOBIOGRAPHIES 
Clue: This coach's book is all "Tark"
Example Output: jerry tarkanian

Example Input: Category: MR. BODY 
Clue: Fed by the hepatic portal veins, it weighs about a pound more in men than in women
Example Output: liver

Example Input: Category: "THE" BEGINNING 
Clue: The first law of this states that energy in a system cannot be created or destroyed
Example Output:
thermodynamics