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Psychological warfare had its beginnings during the campaigns of Genghis Khan through the allowance of certain civilians of the nations , cities , and villages to flee said place , spreading terror and fear to neighboring principalities .
 person: Genghis Khan
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Genghis Khan