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Besides the five tournament matches the show featured an additional four matches including a match for the Mexican National Atómicos Championship between Los Vatos Locos and Los Vipers and a Lucha de Apuesta match between three men who all risked their hair , Perro Aguayo , Sangre Chicana and El Cobarde .
 Perro Aguayo, Sangre Chicana, El Cobarde
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Perro Aguayo, Sangre Chicana, El Cobarde