question: Which film distributor whose founder was employed by M2 , M3 , and M4 and founded M5 and M6 was founded by M1
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film_distributor .
  ?x0 ns:organization.organization.founders ?x1 .
  ?x0 ns:organization.organization.founders M1 .
  ?x1 ns:organization.organization_founder.organizations_founded M5 .
  ?x1 ns:organization.organization_founder.organizations_founded M6 .
  ?x1 ns:people.person.employment_history/ns:business.employment_tenure.company M2 .
  ?x1 ns:people.person.employment_history/ns:business.employment_tenure.company M3 .
  ?x1 ns:people.person.employment_history/ns:business.employment_tenure.company M4
  }