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In 1953 , after only one year at Harvard Business School , he and his young wife , the former Ann Switzer , known as " DeeDee " , relocated to Baton Rouge , Louisiana , where he was employed by her family 's Lamar Advertising , then a small billboard company .
 organization: Harvard Business School; location: Baton Rouge; location: Louisiana; organization: Lamar Advertising
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: Harvard Business School, Baton Rouge, Louisiana, Lamar Advertising 
Answer:
 organization: Harvard Business School; location: Baton Rouge; location: Louisiana; organization: Lamar Advertising