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Princeton Municipal Airport is a town-owned public-use airport located two nautical mile s ( 3.7 km ) south of the central business district of Princeton , a town in Washington County , Maine , United States .
 location: Princeton; location: Princeton; location: Washington County; location: Maine; location: United States
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Princeton; location: Princeton; location: Washington County; location: Maine; location: United States