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The building complex was designed by modernist architect I. M. Pei in 1961 as his first project outside of city building design .
 person: I. M. Pei
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: I. M. Pei 
Answer:
 person: I. M. Pei