question: Which film distributor whose founder founded M3 and M4 was founded by M1 and founded by M2
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 .
  ?x1 ns:organization.organization_founder.organizations_founded M3 .
  ?x1 ns:organization.organization_founder.organizations_founded M4
  }