Were M2 and M4 produced by a film editor , directed by M1 's art director and editor , and executive produced by M3
SELECT count(*) WHERE {
?x0 a ns:film.editor .
?x1 ns:film.editor.film M1 .
?x1 ns:film.film_art_director.films_art_directed M1 .
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
}