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