Was M1 directed by a art director , executive produced by M2 , and directed by M3
SELECT count(*) WHERE {
?x0 a ns:film.film_art_director .
M1 ns:film.film.directed_by ?x0 .
M1 ns:film.film.directed_by M3 .
M1 ns:film.film.executive_produced_by M2
}