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Volume 1 begins with introductory " testimonials " by Steve Martin , Teri Garr , and Bob Eubanks , who explain what being white means to them .
 Steve Martin, Teri Garr, Bob Eubanks
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Steve Martin, Teri Garr, Bob Eubanks