question: Did M2 , M4 , and M5 employ a film producer , employ M3 , and employ a producer of M1
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  ?x1 ns:film.producer.film|ns:film.production_company.films M1 .
  M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
  M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  M2 ns:business.employer.employees/ns:business.employment_tenure.person M3 .
  M4 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
  M4 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  M4 ns:business.employer.employees/ns:business.employment_tenure.person M3 .
  M5 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
  M5 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  M5 ns:business.employer.employees/ns:business.employment_tenure.person M3
  }