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list 1980 s movies with emotional blackmail plots that received four stars
 1980 s, emotional, blackmail, four stars
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: genre, year, plot, average ratings, actor, title, song, character, rating, review, director, trailer 
Text: {0} 
Answer:
 1980 s, emotional, blackmail, four stars