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: OSCAR WINNING ROLES 
Clue: Elmer Gantry

Answer: burt lancaster


Question: Category: RODGERS & HAMMERSTEIN 
Clue: Mary Martin received a Tony Award for playing Maria in this 1959 Rodgers & Hammerstein musical

Answer: the sound of music


Question: Category: "GREEN" THINGS 
Clue: After protecting this territory during WWII, the U.S. offered to buy it, but Denmark refused

Answer:
greenland