Was M2 written by M3 and M4 , written by M5 and M6 , and edited by a Italian art director
SELECT count(*) WHERE {
?x0 a ns:film.film_art_director .
?x0 ns:people.person.nationality ns:m.03rjj .
M2 ns:film.film.edited_by ?x0 .
M2 ns:film.film.written_by M3 .
M2 ns:film.film.written_by M4 .
M2 ns:film.film.written_by M5 .
M2 ns:film.film.written_by M6
}