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The film is split into three distinct segments , each directed by a different director ; namely Carlo Lizzani , Ettore Scola and Gian Luigi Polidoro .
 Carlo Lizzani, Ettore Scola, Gian Luigi Polidoro
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Carlo Lizzani, Ettore Scola, Gian Luigi Polidoro