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: MOVIE MOUNTAINS 
Clue: This peak is featured in the 1959 Disney film "Third Man on the Mountain", where it's called "The Citadel"

Answer: the matterhorn


Question: Category: CHILDREN'S LITERATURE 
Clue: Hans Christian Andersen's "The Nightingale" was inspired by this famous woman

Answer: jenny lind


Question: Category: HOLIDAYS & OBSERVANCES 
Clue: In 1999 these related events will occur on Tuesday, February 16 & Sunday, April 4

Answer:
mardi gras & easter