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William O. Cowger ( January 1 , 1922 – October 2 , 1971 ) , a Republican , served as mayor of Louisville , Kentucky and as a member of the United States House of Representatives .
 person: O. Cowger; organization: Republican; location: Louisville , 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: O. Cowger, Republican, Louisville , Kentucky 
Answer:
 person: O. Cowger; organization: Republican; location: Louisville , Kentucky