question: Was a prequel of M0 distributed by a company , distributed by M1 , distributed by M2 , and distributed by M3
query: SELECT count(*) WHERE {
  ?x0 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor ?x1 .
  ?x0 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M1 .
  ?x0 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M2 .
  ?x0 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M3 .
  ?x0 ns:film.film.sequel M0 .
  ?x1 a ns:business.employer
  }