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The Coastal Riverine Force ( CORIVFOR ) is a unit of the United States Navy within the organizational structure of the Navy Expeditionary Combat Command ( NECC ) .
 United States Navy, Command
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 Navy, Command