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Foster is a town in Garvin County , Oklahoma , United States .
 location: Garvin County; location: Oklahoma; 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: Garvin County, Oklahoma, United States 
Answer:
 location: Garvin County; location: Oklahoma; location: United States