question: Was a film producer that M2 was distributed by and M3 was distributed by M0
query: SELECT count(*) WHERE {
  M0 a ns:film.producer .
  M0 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film M2 .
  M0 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film M3
  }