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Both Masato and Kraus had challenging routes to the final with Masato having a close decision victory over Mike Zambidis and Kraus overcoming up and comer and future K-1 MAX champion Andy Souwer in the quarter finals .
 Masato, Kraus, Masato, Mike Zambidis, Kraus, K-1, Andy Souwer
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Masato, Kraus, Masato, Mike Zambidis, Kraus, K-1, Andy Souwer