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While in Texas , Bates refused to court-martial a black officer who had refused to move to the rear of a bus at Fort Hood .
 person: Bates
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: Bates 
Answer:
 person: Bates