6799
list some biography movies come out in the past decade that are about mass murder and were rated average by critics
 biography, past decade, mass murder, average
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:
 biography, past decade, mass murder, average