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In Poland an international country music festival , known as Piknik Country , has been organized in Mrągowo in Masuria since 1983 .
 location: Poland; location: Mrągowo; location: Masuria
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: Poland, Mrągowo, Masuria 
Answer:
 location: Poland; location: Mrągowo; location: Masuria