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Malden Regional Airport is a city-owned public-use airport located three nautical miles ( 6 km ) north of the central business district of Malden , a city in Dunklin County , Missouri , United States .
 location: Malden; location: Malden; location: Dunklin County; location: Missouri; location: United States
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: Malden, Malden, Dunklin County, Missouri, United States 
Answer:
 location: Malden; location: Malden; location: Dunklin County; location: Missouri; location: United States