253820
He is the two time K-1 World MAX champion ( 2009 , 2010 ) and World Kickboxing Network ( W.K.N. ) Intercontinental Middleweight Muay Thai champion .
 K-1
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 K-1