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Prior to coming to the University of Michigan , Wolfers was associate professor of business and public policy at the Wharton School of the University of Pennsylvania .
 organization: Michigan; person: Wolfers; organization: Wharton School; organization: University of Pennsylvania
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: Michigan, Wolfers, Wharton School, University of Pennsylvania 
Answer:
 organization: Michigan; person: Wolfers; organization: Wharton School; organization: University of Pennsylvania