question: What was a film distributor that M3 , M4 , M5 , and M6 were acquired by and M1 and M2 acquired
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film_distributor .
  ?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M1 .
  ?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M2 .
  ?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M3 .
  ?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M4 .
  ?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M5 .
  ?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M6
  }