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In June 1916 he was awarded a commission as Second Lieutenant in the Queen 's Own Cameron Highlanders and was sent to the Battle of the Somme .
 Queen 's Own Cameron Highlanders
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Queen 's Own Cameron Highlanders