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Like Prescott , Jack Berry , trainer of Mind Games , had gone into Thursday 's race in search of a first group one success after many years around the top of his profession .
 Jack Berry, Prescott, Mind Games
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Jack Berry, Prescott, Mind Games