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It was the second-largest feeder fund to Madoff 's firm , after Fairfield Greenwich , earning fees of 2 % of asset s for sending customers ' cash to Madoff .
 Madoff, Fairfield Greenwich, Madoff
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Madoff, Fairfield Greenwich, Madoff