question: Did M0 's art director edit and write a film
query: SELECT count(*) WHERE {
  ?x0 ns:film.editor.film ?x1 .
  ?x0 ns:film.film_art_director.films_art_directed M0 .
  ?x0 ns:film.writer.film ?x1 .
  ?x1 a ns:film.film
  }