question: Was a film 's Dutch costume designer M1 's editor
query: SELECT count(*) WHERE {
  ?x0 ns:film.editor.film M1 .
  ?x0 ns:film.film_costumer_designer.costume_design_for_film ?x1 .
  ?x0 ns:people.person.nationality ns:m.059j2 .
  ?x1 a ns:film.film
  }