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Similarly , Eurasian jays ( " Garrulus glandarius " ) when being watched by another jay , prefer to cache food behind an opaque barrier rather than a transparent barrier , suggesting they may opt to cache in out-of-view locations to reduce the likelihood of other jays pilfering their caches .
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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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