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In May 1917 with War raging in Europe , Prince Ferdinando was appointed to lead an Italian War Commission to the United States of America .
 person: Prince; location: United States of America
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: Prince, United States of America 
Answer:
 person: Prince; location: United States of America