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what pollution mockumentary in the last ten years was directed by stephan elliott and rated pg 13
 plot: pollution; genre: mockumentary; year: last ten years; director: stephan elliott; rating: pg 13
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: genre, year, plot, average ratings, actor, title, song, character, rating, review, director, trailer 
Text: {0} 
Answer:
 plot: pollution; genre: mockumentary; year: last ten years; director: stephan elliott; rating: pg 13