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Thomas Hildred Christie ( born 26 March 1927 ) is a former doctor and rower who represented Great Britain rowing at the 1948 Summer Olympics and twice won Silver Goblets at Henley Royal Regatta .
 person: Christie; organization: Henley Royal Regatta
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: Christie, Henley Royal Regatta 
Answer:
 person: Christie; organization: Henley Royal Regatta