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CFL Saskatchewan Roughriders Bergquist signed a practice roster agreement with the Saskatchewan Roughriders on July 6 , 2009 and spent the rest of the season on the practice roster .
 Saskatchewan Roughriders Bergquist, Saskatchewan Roughriders
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Saskatchewan Roughriders Bergquist, Saskatchewan Roughriders