question: Were M1 and M3 distributed by a cinematographer and distributed by M2
query: SELECT count(*) WHERE {
  ?x0 a ns:film.cinematographer .
  M1 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor ?x0 .
  M1 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M2 .
  M3 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor ?x0 .
  M3 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M2
  }