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Its analog transmitter was located on Neutaconcanut Hill in Johnston , until the FCC-mandated digital conversion in 2009 .
 location: Johnston
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: Johnston 
Answer:
 location: Johnston