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In his 2007 book Cultural Amnesia , critic Clive James wrote : " Books about Hitler are without number , but after more than 60 years , the first one to read is still Alan Bullock 's " Hitler a Study in Tyranny " .
 person: Clive James; person: Hitler; person: Alan Bullock; person: Hitler
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Clive James; person: Hitler; person: Alan Bullock; person: Hitler