question: Was a Spanish art director that M3 and M4 starred a film editor
query: SELECT count(*) WHERE {
  ?x0 a ns:film.editor .
  ?x0 a ns:film.film_art_director .
  ?x0 ns:film.actor.film/ns:film.performance.film M3 .
  ?x0 ns:film.actor.film/ns:film.performance.film M4 .
  ?x0 ns:people.person.nationality ns:m.06mkj
  }