question: Did a production company that was founded by M1 and M2 and employed M3 and M4 acquire M5 and M6
query: SELECT count(*) WHERE {
  ?x0 a ns:film.production_company .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person M3 .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person 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 .
  ?x0 ns:organization.organization.founders M1 .
  ?x0 ns:organization.organization.founders M2
  }