question: Was a cinematographer of M2 and M3 a film 's German male art director
query: SELECT count(*) WHERE {
  ?x0 ns:film.cinematographer.film M2 .
  ?x0 ns:film.cinematographer.film M3 .
  ?x0 ns:film.film_art_director.films_art_directed ?x1 .
  ?x0 ns:people.person.gender ns:m.05zppz .
  ?x0 ns:people.person.nationality ns:m.0345h .
  ?x1 a ns:film.film
  }