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Espin fought in the Sierra Maestras with Fidel Castro and Raul Castro and married Raul in 1959 .
 Fidel Castro, Raul Castro, Raul
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Fidel Castro, Raul Castro, Raul