Was M2 written by M3 and M4 , produced by M1 's employee , and executive produced by a art director
SELECT count(*) WHERE {
?x0 a ns:film.film_art_director .
?x1 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
M2 ns:film.film.executive_produced_by ?x0 .
M2 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
M2 ns:film.film.written_by M3 .
M2 ns:film.film.written_by M4
}