Was M2 edited by M3 , M4 , and M5 and written by a Dutch editor of M1
SELECT count(*) WHERE {
?x0 ns:film.editor.film M1 .
?x0 ns:people.person.nationality ns:m.059j2 .
M2 ns:film.film.edited_by M3 .
M2 ns:film.film.edited_by M4 .
M2 ns:film.film.edited_by M5 .
M2 ns:film.film.written_by ?x0
}