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His son , also named Thomas Sherwin , was lieutenant colonel of the 22nd Massachusetts Regiment during the American Civil War .
 person: Thomas Sherwin; organization: 22nd Massachusetts Regiment
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: Thomas Sherwin, 22nd Massachusetts Regiment 
Answer:
 person: Thomas Sherwin; organization: 22nd Massachusetts Regiment