question: Which film distributor was founded by M1 , M2 , and M3 and was founded by M6 's German American producer
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film_distributor .
  ?x0 ns:organization.organization.founders ?x1 .
  ?x0 ns:organization.organization.founders M1 .
  ?x0 ns:organization.organization.founders M2 .
  ?x0 ns:organization.organization.founders M3 .
  ?x1 ns:film.producer.film|ns:film.production_company.films M6 .
  ?x1 ns:people.person.nationality ns:m.0345h .
  ?x1 ns:people.person.nationality ns:m.09c7w0
  }