question: Did M1 distribute a film 's prequel and sequel and distribute M2 , M3 , and M4
query: SELECT count(*) WHERE {
  ?x0 ns:film.film.prequel ?x1 .
  ?x0 ns:film.film.sequel ?x1 .
  ?x1 a ns:film.film .
  M1 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film ?x0 .
  M1 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film M2 .
  M1 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film M3 .
  M1 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film M4
  }