question: Which parent of M0 produced and executive produced a film
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.producer.films_executive_produced ?x1 .
  ?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
  ?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child M0 .
  ?x1 a ns:film.film
  }