Was M1 edited by M2 and M3 , edited by M4 , edited by M5 , and directed by a film producer
SELECT count(*) WHERE {
?x0 a ns:film.producer .
M1 ns:film.film.directed_by ?x0 .
M1 ns:film.film.edited_by M2 .
M1 ns:film.film.edited_by M3 .
M1 ns:film.film.edited_by M4 .
M1 ns:film.film.edited_by M5
}