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8th Regiment Missouri Volunteer Cavalry ( August 6 , 1862 - July 20 , 1865 ) was a Union Army regiment during the American Civil War .
 organization: 8th Regiment Missouri Volunteer Cavalry; organization: Union Army
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: 8th Regiment Missouri Volunteer Cavalry, Union Army 
Answer:
 organization: 8th Regiment Missouri Volunteer Cavalry; organization: Union Army