Were M2 and M5 written by M3 , edited by M4 , and edited by M1 's German star
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M1 .
?x0 ns:people.person.nationality ns:m.0345h .
M2 ns:film.film.edited_by ?x0 .
M2 ns:film.film.edited_by M4 .
M2 ns:film.film.written_by M3 .
M5 ns:film.film.edited_by ?x0 .
M5 ns:film.film.edited_by M4 .
M5 ns:film.film.written_by M3
}