Did M2 star M1 's editor , star M3 , and star a art director
SELECT count(*) WHERE {
?x0 a ns:film.film_art_director .
?x1 ns:film.editor.film M1 .
M2 ns:film.film.starring/ns:film.performance.actor ?x0 .
M2 ns:film.film.starring/ns:film.performance.actor ?x1 .
M2 ns:film.film.starring/ns:film.performance.actor M3
}