Which film editor was a German film producer that M3 was produced by and M4 was produced by
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.editor .
?x0 a ns:film.producer .
?x0 ns:film.producer.film|ns:film.production_company.films M3 .
?x0 ns:film.producer.film|ns:film.production_company.films M4 .
?x0 ns:people.person.nationality ns:m.0345h
}