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From 11 December 1920 to 2 February 1923 he was Interior Minister under William Buck .
 organization: Interior Minister; person: William Buck
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:
 organization: Interior Minister; person: William Buck