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The mixed doubles competition at the 2010 Asian Games in Guangzhou was held on from 20 November to 22 November at the Guangzhou Chess Institute .
 location: Guangzhou; location: Guangzhou
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: Guangzhou, Guangzhou 
Answer:
 location: Guangzhou; location: Guangzhou