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Free Software , Free Society : Selected Essays of Richard M. Stallman is a book that collects the writing of Richard M. Stallman .
 person: M. Stallman; person: Richard M. Stallman
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: M. Stallman, Richard M. Stallman 
Answer:
 person: M. Stallman; person: Richard M. Stallman