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The fight ended at 2:22 , exactly the same time as Ken Shamrock 's earlier fight against Kimbo Slice .
 Ken Shamrock, Kimbo Slice
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ken Shamrock, Kimbo Slice