question: Was M1 produced by a distributor of a film and distributed by M2 and M3
query: SELECT count(*) WHERE {
  ?x0 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film ?x1 .
  ?x1 a ns:film.film .
  M1 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M2 .
  M1 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M3 .
  M1 ns:film.film.produced_by|ns:film.film.production_companies ?x0
  }