Were M4 , M5 , and M6 directed by a Dutch film editor that M1 and M2 were produced by and edited by
SELECT count(*) WHERE {
?x0 a ns:film.editor .
?x0 ns:film.editor.film M1 .
?x0 ns:film.editor.film M2 .
?x0 ns:film.producer.film|ns:film.production_company.films M1 .
?x0 ns:film.producer.film|ns:film.production_company.films M2 .
?x0 ns:people.person.nationality ns:m.059j2 .
M4 ns:film.film.directed_by ?x0 .
M5 ns:film.film.directed_by ?x0 .
M6 ns:film.film.directed_by ?x0
}