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: A BUSINESS IS BORN 
Clue: The first drug-store in this chain began operating out of a Chicago hotel in 1901; in 2009 the 7,000th store opened
Example Output: walgreens

Example Input: Category: 10 
Clue: This teenage tennis goddess is often escorted by older Russian hockey players
Example Output: anna kournikova

Example Input: Category: SCIENCE 
Clue: The universe's background radiation is thought to be left over from this primordial event
Example Output:
the big bang