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In the 200 m freestyle , Kim challenged seven other swimmers on the fourth heat , including top medal favorite Dana Vollmer of the United States .
 person: Kim; person: Dana Vollmer
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: Kim, Dana Vollmer 
Answer:
 person: Kim; person: Dana Vollmer