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While a professor at Princeton University he supervised some graduate students who would eventually become very well-known economists , including Burton Malkiel , William G. Bowen , and Harold Tafler Shapiro .
 Princeton University, Burton Malkiel, William G. Bowen, Harold Tafler Shapiro
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Princeton University, Burton Malkiel, William G. Bowen, Harold Tafler Shapiro