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what was a nc 17 rated documentary directed by michael spierig
 rating: nc 17; genre: documentary; director: michael spierig
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:
 rating: nc 17; genre: documentary; director: michael spierig