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Professional wrestling career Jaime Álvarez began training for a professional wrestling career under Diablo Velazco in 1969 but did not make his debut until September 15 , 1971 , training for nearly three years under Velazco and El Enfermero .
 Diablo Velazco, Velazco, El
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Diablo Velazco, Velazco, El