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Gunday is an upcoming Romantic Hindi film , written and directed by Ali Abbas Zafar and produced by Aditya Chopra .
 Ali Abbas Zafar, Aditya Chopra
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ali Abbas Zafar, Aditya Chopra