question: Were M2 , M3 , M4 , M5 , and M6 acquired by a production company whose employee founded and was employed by M1
query: SELECT count(*) WHERE {
  ?x0 a ns:film.production_company .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  ?x1 ns:organization.organization_founder.organizations_founded M1 .
  ?x1 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
  M2 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0 .
  M3 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0 .
  M4 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0 .
  M5 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0 .
  M6 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0
  }