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Its main rival game , By June 2015 , all versions of the game sold over 1.5 million copies worldwide , along with 3.5 million downloads of the free-to-play versions of " Dead or Alive 5 Ultimate " and " Dead or Alive 5 Last Round " .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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