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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 .
 organization: Princeton University; person: Burton Malkiel; person: William G. Bowen; person: Harold Tafler Shapiro
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Princeton University, Burton Malkiel, William G. Bowen, Harold Tafler Shapiro 
Answer:
 organization: Princeton University; person: Burton Malkiel; person: William G. Bowen; person: Harold Tafler Shapiro