question: Was a German costume designer M2 's art director and director
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film_costumer_designer .
  ?x0 ns:film.director.film M2 .
  ?x0 ns:film.film_art_director.films_art_directed M2 .
  ?x0 ns:people.person.nationality ns:m.0345h
  }