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Flag assignments His flag assignments include Commander , U.S. Naval Forces Marianas / Commander , U.S. Naval Base , Guam ; Commander in Chief , Pacific Representative for Guam and the Trust Territory of the Pacific Islands ; and Deputy Assistant Chief and then Deputy Chief of Naval Operations for Submarine Warfare .
 Naval Forces, Naval, Guam, Guam, Naval
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Naval Forces, Naval, Guam, Guam, Naval