Was M2 produced by a art director , executive produced by a person , and edited by M3 and M4
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x1 a ns:film.film_art_director .
M2 ns:film.film.edited_by M3 .
M2 ns:film.film.edited_by M4 .
M2 ns:film.film.executive_produced_by ?x0 .
M2 ns:film.film.produced_by|ns:film.film.production_companies ?x1
}