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The film critic of Der Spiegel described the picture as " making no claim to document history truthfully " , while also quoting Walter Ulbricht , who called it " a great work of the Working Class " and a monument to Soviet-East German friendship .
 person: Walter Ulbricht
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: Walter Ulbricht 
Answer:
 person: Walter Ulbricht