1784
unrated mystery in the past seven years that has four stars
 rating: unrated; genre: mystery; year: past seven years; average ratings: four stars
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: unrated; genre: mystery; year: past seven years; average ratings: four stars