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He worked the 4-2-4 , and with him as coach , Olympiacos played great football , that Marton Bukovi continued when he came to Piraeus .
 Olympiacos, Marton Bukovi
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Olympiacos, Marton Bukovi