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The Book Hitler : a Study in Tyranny was a major historical study of the life of the Nazi dictator , Adolf Hitler .
 person: Hitler; person: Adolf Hitler
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: Hitler, Adolf Hitler 
Answer:
 person: Hitler; person: Adolf Hitler