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Brooks K. Mould was a Chicago-based music publisher , whose " Garden City Polka " was the first piece of music to be published in Chicago .
 Brooks K. Mould, Chicago
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Brooks K. Mould, Chicago