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Charles Wentworth Roberts ( 1828 – 1898 ) was a colonel in the Union Army during the American Civil War , who was awarded the rank of brevet brigadier general , United States Volunteers , in 1866 , to rank from March 13 , 1865 .
 person: 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: Roberts 
Answer:
 person: Roberts