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Civil War After the February Revolution of 1917 General Miller opposed " democratization " of the Russian army and was arrested by his own soldiers after he ordered them to remove red arm bands .
 person: Miller
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: Miller 
Answer:
 person: Miller