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Stuart rowed for Kingston Rowing Club and was runner up to Alexander McCulloch in the Diamond Challenge Sculls at Henley Royal Regatta in 1908 .
 Stuart, Alexander McCulloch, Henley Royal Regatta
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Stuart, Alexander McCulloch, Henley Royal Regatta