question: Was a film director whose employer acquired M0 , M1 , M2 , and M3 M4
query: SELECT count(*) WHERE {
  ?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M0 .
  ?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M1 .
  ?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M2 .
  ?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M3 .
  M4 a ns:film.director .
  M4 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0
  }