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After Zappa 's first marriage began to break up in 1964 , he bought local producer Paul Buff 's Pal Recording Studio , renaming it " Studio Z " , and he and Sherwood lived in the studio for a time .
 Zappa, Sherwood
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Zappa, Sherwood