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We return now to my interview earlier today with the United States defense secretary , Donald Rumsfeld .
 United States, We, my, the United States defense secretary, Donald Rumsfeld
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 United States, We, my, the United States defense secretary, Donald Rumsfeld