instruction:
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.
question:
Category: CONFUSE US 
Clue: Affluent means wealthy: effluent refers to waste in this state of matter
answer:
liquid


question:
Category: FOREIGN NATIONAL PARKS 
Clue: Great Gobi Desert
answer:
mongolia


question:
Category: WAR 
Clue: "50 million Frenchmen can't be wrong" became a popular saying with soldiers during this war
answer:

world war i