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