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.

[Q]: Category: RELIGION 
Clue: Some 3 million pilgrims visit this small French town annually
[A]: lourdes


[Q]: Category: PLACES FOR ANIMALS 
Clue: This word refers to extreme opposites or a type of bear
[A]: polar


[Q]: Category: U.S. CITIES 
Clue: Lancaster, Pennsylvania is on this river, which shares its name with a type of wagon
[A]:
conestoga