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Beals made his debut for the Olympics playing under the name W. Thomas on July 27 , 1871 .
 person: Beals; organization: Olympics
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: Beals, Olympics 
Answer:
 person: Beals; organization: Olympics