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History Soldiers denominated " grenadiers " have long been part of Switzerland 's military tradition : even before the 19th century , grenadiers served as part of the cantonal contingents of the Swiss Confederacy .
 Swiss
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Swiss