Was M4 directed by a Italian screenwriter that M1 and M2 were written by and edited by
SELECT count(*) WHERE {
?x0 a ns:film.writer .
?x0 ns:film.editor.film M1 .
?x0 ns:film.editor.film M2 .
?x0 ns:film.writer.film M1 .
?x0 ns:film.writer.film M2 .
?x0 ns:people.person.nationality ns:m.03rjj .
M4 ns:film.film.directed_by ?x0
}