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Thereafter , he has appeared in a number of other films directed by Romero , including Dawn of the Dead ( 1978 ) , Knightriders ( 1981 ) , Creepshow ( 1982 ) , and Day of the Dead ( 1985 ) .
 Romero
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Romero