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Sperzel did postgraduate work at the University of Pennsylvania School of Veterinary Medicine and in 1962 he was awarded a Master 's Degree in radiation biology by the Graduate School of Medicine and Dentistry at the University of Rochester .
 organization: University of Pennsylvania; organization: University of Rochester
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: University of Pennsylvania, University of Rochester 
Answer:
 organization: University of Pennsylvania; organization: University of Rochester