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EMLL decided that Fuentes needed a different ring persona and created the character " MS-1 " for him ; MS refers to a Mexican Antiterrorist corps where MS-1 is the highest rank .
 MS-1, MS-1
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 MS-1, MS-1