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Their daughters were also given husbands of tribes important to the expansion of the Mongol Empire and they were expected to aid their father by taking over power their while their husbands served him as his gurugen , or son-in-laws .
 location: Mongol Empire
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: Mongol Empire 
Answer:
 location: Mongol Empire