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.
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Question: Category: GET AN EDUCATION! 
Clue: God willing, you'll learn enough about religion to know this word defined as belief in a single god

Answer: monotheism


Question: Category: PLAYBILL 
Clue: This musical's "American Dream" ended on B'way after 4,097 performances--& a lot of helicopter flights

Answer: miss saigon


Question: Category: FINN FUN 
Clue: Yeow!  The heat in this traditional Finnish room may reach the boiling point of water

Answer:
sauna