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Polášek teamed up with Julian Knowle , but lost in the semifinals to Jarkko Nieminen and Dmitry Tursunov .
 Polášek, Julian Knowle, Jarkko Nieminen, Dmitry Tursunov
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Polášek, Julian Knowle, Jarkko Nieminen, Dmitry Tursunov