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In July 2008 , he took a position as senior advisor of hockey operations for the Chicago Blackhawks to work alongside his son Stan Bowman , who is the general manager .
 Chicago Blackhawks, Stan Bowman
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Chicago Blackhawks, Stan Bowman