question: What was a film distributor whose founder executive produced M1 , M2 , M3 , M4 , M5 , and M6
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film_distributor .
  ?x0 ns:organization.organization.founders ?x1 .
  ?x1 ns:film.producer.films_executive_produced M1 .
  ?x1 ns:film.producer.films_executive_produced M2 .
  ?x1 ns:film.producer.films_executive_produced M3 .
  ?x1 ns:film.producer.films_executive_produced M4 .
  ?x1 ns:film.producer.films_executive_produced M5 .
  ?x1 ns:film.producer.films_executive_produced M6
  }