Were M2 , M3 , M4 , and M5 directed by a art director that M1 was directed by and executive produced by
SELECT count(*) WHERE {
?x0 a ns:film.film_art_director .
?x0 ns:film.director.film M1 .
?x0 ns:film.producer.films_executive_produced M1 .
M2 ns:film.film.directed_by ?x0 .
M3 ns:film.film.directed_by ?x0 .
M4 ns:film.film.directed_by ?x0 .
M5 ns:film.film.directed_by ?x0
}