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In addition to Switzerland , Vatel schools can be found in the following locations on 4 continents : Vatel in Switzerland 's infrastructure Students at Vatel in Switzerland , like in other Vatel schools , are required to apply their theoretical knowledge to real practical situations .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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