5735
in the past three decades how many science fiction movies has charles stewart directed
 past three decades, science fiction, charles stewart
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:
 past three decades, science fiction, charles stewart