question: Was M2 produced by and directed by M1 's sequel 's German art director
query: SELECT count(*) WHERE {
  ?x0 ns:film.film_art_director.films_art_directed ?x1 .
  ?x0 ns:people.person.nationality ns:m.0345h .
  ?x1 ns:film.film.prequel M1 .
  M2 ns:film.film.directed_by ?x0 .
  M2 ns:film.film.produced_by|ns:film.film.production_companies ?x0
  }