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In 1954 , Fox and his partner John Marsden astonished the rowing world by beating the Russian silver medallists in the Double Sculls at Henley .
 person: Fox; person: John Marsden; organization: Henley
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: Fox, John Marsden, Henley 
Answer:
 person: Fox; person: John Marsden; organization: Henley