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In modern geographic usage , the name " Jackson Purchase " typically refers only to the portion of the historical region in the state of Kentucky .
 person: Jackson; location: Kentucky
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: Jackson, Kentucky 
Answer:
 person: Jackson; location: Kentucky