question: Was a art director and costume designer of M0 and M1 a German costume designer
query: SELECT count(*) WHERE {
  ?x0 ns:film.film_art_director.films_art_directed M0 .
  ?x0 ns:film.film_art_director.films_art_directed M1 .
  ?x0 ns:film.film_costumer_designer.costume_design_for_film M0 .
  ?x0 ns:film.film_costumer_designer.costume_design_for_film M1 .
  ?x0 ns:people.person.nationality ns:m.0345h
  }