question: Was a film producer whose employer was acquired by M0 , M1 , M2 , M3 , and M4 and was acquired by M5 M6
query: SELECT count(*) WHERE {
  ?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M0 .
  ?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.acquired_by/ns:business.acquisition.acquiring_company M3 .
  ?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M4 .
  ?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M5 .
  M6 a ns:film.producer .
  M6 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0
  }