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Other band members included vocalists John Pouridas , John Berry ) , Garth Ripton , Rebecca " R.B. " Korbet , and Ken " Tantrum " Tempkin ; guitarists Dave Stein , Robert Weeks , Thurston Moore , and Steve Waxman ; and bassists Nick Marden ( later of The Stimulators ) , Eric Keil and Tim Sommer .
 Rebecca " R.B. " Korbet, Thurston Moore, Tim Sommer
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rebecca " R.B. " Korbet, Thurston Moore, Tim Sommer