question: Did M1 employ M2 , M3 , and M4 , employ M5 , and employ a art director 's employer 's employee
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
  ?x1 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
  ?x2 a ns:film.film_art_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
  }