question: Which film distributor that a person founded was M0 's distributor
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film M0 .
  ?x0 ns:organization.organization.founders ?x1 .
  ?x1 a ns:people.person
  }