question: Did M1 employ M2 , M3 , M4 , and M5 , employ a film director , and employ M6
query: SELECT count(*) WHERE {
  ?x0 a ns:film.director .
  M1 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
  M1 ns:business.employer.employees/ns:business.employment_tenure.person M2 .
  M1 ns:business.employer.employees/ns:business.employment_tenure.person M3 .
  M1 ns:business.employer.employees/ns:business.employment_tenure.person M4 .
  M1 ns:business.employer.employees/ns:business.employment_tenure.person M5 .
  M1 ns:business.employer.employees/ns:business.employment_tenure.person M6
  }