question: Was a film 's producer M0 's writer , art director , and director
query: SELECT count(*) WHERE {
  ?x0 ns:film.director.film M0 .
  ?x0 ns:film.film_art_director.films_art_directed M0 .
  ?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
  ?x0 ns:film.writer.film M0 .
  ?x1 a ns:film.film
  }