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McClellan was commander of the Department of the Ohio , with responsibilities that included defense of the Ohio River and the parts of the Mississippi that were not in Confederate control .
 person: McClellan; organization: Mississippi
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: McClellan, Mississippi 
Answer:
 person: McClellan; organization: Mississippi