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In February 2005 , the Royal Navy vessel surveyed the seabed around the earthquake zone , which varies in depth between .
 organization: Royal 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: Royal Navy 
Answer:
 organization: Royal Navy