Were M2 and M4 directed by a art director , executive produced by M3 , and produced by a film director
SELECT count(*) WHERE {
?x0 a ns:film.director .
?x1 a ns:film.film_art_director .
M2 ns:film.film.directed_by ?x1 .
M2 ns:film.film.executive_produced_by M3 .
M2 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M4 ns:film.film.directed_by ?x1 .
M4 ns:film.film.executive_produced_by M3 .
M4 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}