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Yuri Felshtinsky and Alexander Litvinenko worked as consultants for the film ; the film was made on the basis of their book Blowing Up Russia : Terror from Within .
 person: Yuri Felshtinsky; person: Alexander Litvinenko
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: Yuri Felshtinsky, Alexander Litvinenko 
Answer:
 person: Yuri Felshtinsky; person: Alexander Litvinenko