question: Was M0 's German writer a art director and cinematographer of M2
query: SELECT count(*) WHERE {
  ?x0 ns:film.cinematographer.film M2 .
  ?x0 ns:film.film_art_director.films_art_directed M2 .
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:people.person.nationality ns:m.0345h
  }