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what is a 1970 s musical with average ratings that is raged pg 13
 1970 s, musical, average, pg 13
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:
 1970 s, musical, average, pg 13