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.

[EX Q]: Category: OPERAS BY CONTINENT 
Clue: "Aida "
[EX A]: africa

[EX Q]: Category: THE NASTY CRITIC REVIEWS THE 19th CENTURY 
Clue: After an 1835 election loss, he told Tennesseans, "You may all go to Hell & I will go to Tex."; never did like his hat
[EX A]: crockett

[EX Q]: Category: THE HILLS 
Clue: Mills in the Gas Hills of Wyoming refine & press this element into the yellowcake form
[EX A]:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
uranium

