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In 1946 , he recorded his first records for Columbia Records and then for Aristocrat Records , a newly formed label run by the brothers Leonard and Phil Chess .
 Columbia Records, Aristocrat Records, Leonard, Phil Chess
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Columbia Records, Aristocrat Records, Leonard, Phil Chess