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However , it pops back out when his back is turned and after two more tries at getting it in place - both with the same result - Scrat gets frustrated and stomps it into place , unwittingly causing all the acorns to fall out of a hole in the tree .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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