Was M2 a film edited by a actor , directed by M1 's art director , and edited by M4
SELECT count(*) WHERE {
?x0 a ns:film.actor .
?x1 ns:film.film_art_director.films_art_directed M1 .
M2 a ns:film.film .
M2 ns:film.film.directed_by ?x1 .
M2 ns:film.film.edited_by ?x0 .
M2 ns:film.film.edited_by M4
}