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Michael S. Barr is a professor of law at the University of Michigan Law School .
 person: Barr; organization: University of Michigan Law School
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: Barr, University of Michigan Law School 
Answer:
 person: Barr; organization: University of Michigan Law School