question: What did M0 found , a film producer that M3 and M4 starred found , and M1 found
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:organization.organization.founders ?x1 .
  ?x0 ns:organization.organization.founders M0 .
  ?x0 ns:organization.organization.founders M1 .
  ?x1 a ns:film.producer .
  ?x1 ns:film.actor.film/ns:film.performance.film M3 .
  ?x1 ns:film.actor.film/ns:film.performance.film M4
  }