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He participated in the first heat against two other swimmers Igor Erhartić of Serbia and Montenegro and 14-year-old Ruslan Ismailov of Kyrgyzstan .
 person: Igor Erhartić
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: Igor Erhartić 
Answer:
 person: Igor Erhartić