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In 1959 he switched to the double scull s and won the Double Sculls Challenge Cup at Henley partnering Stuart MacKenzie and beating George Justicz and Nicholas Birkmyre .
 organization: Henley; person: Stuart MacKenzie; person: George Justicz; person: Nicholas Birkmyre
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Henley; person: Stuart MacKenzie; person: George Justicz; person: Nicholas Birkmyre