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The term , on occasion , has been applied to maritime republics or thalassocracies ( e.g. the Athenian and British empires ) with looser structures and more scattered territories , often consisting of many islands and other forms of possessions which required the creation and maintenance of a powerful navy .
 None
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:  
Answer:
 None