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Their record was produced by Bob Casale and Mark Mothersbaugh , and Mark also co-wrote some of the songs .
 Bob Casale, Mark Mothersbaugh, Mark
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bob Casale, Mark Mothersbaugh, Mark