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: PLAYS 
Clue: Based on a myth, this 1913 play became a 1938 movie, a 1956 stage musical & a 1964 movie musical
Example Output: pygmalion

Example Input: Category: SPORTS BOOKS 
Clue: In 1998 the author of this controversial 1970 book was finally invited to play in a Yankees old-timers' game
Example Output: \"ball four\"

Example Input: Category: FLAGS 
Clue: In a policy begun in 2002 as a symbol of the War on Terrorism, U.S. Navy ships fly the 18th c. flag with this 4-word motto
Example Output:
dont tread on me