Was M2 edited by a art director that executive produced M1 and produced by M3 and M4
SELECT count(*) WHERE {
?x0 a ns:film.film_art_director .
?x0 ns:film.producer.films_executive_produced M1 .
M2 ns:film.film.edited_by ?x0 .
M2 ns:film.film.produced_by|ns:film.film.production_companies M3 .
M2 ns:film.film.produced_by|ns:film.film.production_companies M4
}