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Professor Yan received his Ph. D in political science from University of California , Berkeley in 1992 .
 person: Yan; organization: University of California , Berkeley
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: Yan, University of California , Berkeley 
Answer:
 person: Yan; organization: University of California , Berkeley