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Igor Andreyevich Berezutskiy ( ; born June 7 , 1984 in Volgograd ) is a retired Russian swimmer , who specialized in freestyle and individual medley events .
 location: Volgograd
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: Volgograd 
Answer:
 location: Volgograd