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: NONFICTION 
Clue: This 1988 bestseller was subtitled "From the Big Bang to Black Holes"

Output: a brief history of time


Input: Consider Input: Category: KEANU, ASHTON OR EINSTEIN 
Clue: Born in Beirut, Lebanon

Output: keanu


Input: Consider Input: Category: OF OUTRAGEOUS FORTUNE 
Clue: In August 2009 the sultan of this spent $21,000 to get a trim from his favorite hairdresser


Output: brunei