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On December 1 , 2008 , Dish México began to operate in México , after an agreement between EchoStar Corporation and the Mexican media conglomerate MVS Comunicaciones .
 Dish México, México, EchoStar Corporation, MVS Comunicaciones
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Dish México, México, EchoStar Corporation, MVS Comunicaciones