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He attended Beloit College and the United States Naval Academy , where after graduating in 1922 , he served in the United States Navy until 1951 , retiring as a captain .
 Beloit College, United States Naval Academy, United States Navy
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Beloit College, United States Naval Academy, United States Navy