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McGoun originally enlisted in the 24th Battalion ( Victoria Rifles ) , CEF of the Canadian Expeditionary Force but transferred to the Royal Flying Corps in October 1916 .
 McGoun, Canadian Expeditionary Force, Royal Flying Corps
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 McGoun, Canadian Expeditionary Force, Royal Flying Corps