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USS Natoma ( SP-666 ) was a motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919 .
 organization: United States Navy
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: United States Navy 
Answer:
 organization: United States Navy