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According to Roach , Morrow had been " free-lancing around San Francisco clubs " when they hired him to play with them after having rejecting two other bassists .
 Roach, Morrow
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Roach, Morrow