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The film , directed and written by Manoj Kumar , addressed themes of honesty in the face of oppression and financial and emotional hardship and was the top-earning film of 1974 .
 Manoj Kumar
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Manoj Kumar