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Also receiving publicity were assertions of an American general quoted in the book , General William Hood Simpson , commander of the Ninth United States Army in World War II , that he is convinced his Army " could have captured Berlin well ahead of the Russians if it had not been stopped on the Elbe River on 15 April , 1945 " .
 person: William Hood Simpson; organization: Ninth United States 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: William Hood Simpson, Ninth United States Army 
Answer:
 person: William Hood Simpson; organization: Ninth United States Army