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Lt. Colonel Varney recovered from his wound and was made colonel of the regiment on January 10 , 1863 with the retirement of Colonel Charles W. Roberts .
 person: Varney; person: Charles W. Roberts
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: Varney, Charles W. Roberts 
Answer:
 person: Varney; person: Charles W. Roberts