19984
Some were outside territorial waters , and had a second life in the 1960 s as platforms for pirate radio stations , while another became the base of a micronation , the Principality of Sealand .
 location: Principality of Sealand
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: Principality of Sealand 
Answer:
 location: Principality of Sealand