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In a unique format , six bowlers ( Doug Kent , Sean Rash , Michael Haugen Jr. , Norm Duke , Parker Bohn III and Chris Barnes ) battled for a $ 150,000 winner-take-all prize .
 Doug Kent, Sean Rash, Michael Haugen Jr., Norm Duke, Parker Bohn III, Chris Barnes
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Doug Kent, Sean Rash, Michael Haugen Jr., Norm Duke, Parker Bohn III, Chris Barnes