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UFC 162 : Silva vs. Weidman is an upcoming mixed martial arts event to be held on July 6 , 2013 at the MGM Grand Garden Arena in Las Vegas , Nevada .
 person: Silva; person: Weidman; location: Las Vegas , Nevada
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: Silva, Weidman, Las Vegas , Nevada 
Answer:
 person: Silva; person: Weidman; location: Las Vegas , Nevada