TASK DEFINITION: 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.
PROBLEM: Category: TIME 
Clue: In the Queen's English, the phrase "Time, gentlemen, please!" refers to this

SOLUTION: the pub is about to close

PROBLEM: Category: U.S. GEOGRAPHY 
Clue: In 1937 the government set aside this Georgia swamp as a national wildlife refuge

SOLUTION: okefenokee swamp

PROBLEM: Category: WOMEN AUTHORS 
Clue: She described "And Then There Were None" as "a better piece of craftsmanship than anything else" she wrote

SOLUTION:
agatha christie