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He completed his master 's at Stony Brook University under Bülent Arel .
 organization: Stony Brook University; person: Bülent Arel
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: Stony Brook University, Bülent Arel 
Answer:
 organization: Stony Brook University; person: Bülent Arel