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Dignitaries included the Chief of Staff of the United States Army , General William Westmoreland , four cabinet members , 19 state governors , 40 mayors , 60 ambassadors and 200 congressmen .
 United States Army, William Westmoreland
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 United States Army, William Westmoreland