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 CHRISTMAS POTPOURRI 
Clue: On Christmas Eve 1968, Borman, Lovell & Anders became the first men to circle this object
Example Output: the moon

Example Input: Category: THE BRITISH ISLES 
Clue: This island group that lies just north of the Scottish mainland was known to classical writers as the Orcades
Example Output: the orkney islands

Example Input: Category: MONGOLIA 
Clue: The ruined city of Karakorum is where this conqueror established his headquarters in 1220
Example Output:
genghis khan