question: Were M2 and M4 employed by M3 , employed by a company , and employed by M0 's distributor and producer
query: SELECT count(*) WHERE {
  ?x0 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film M0 .
  ?x0 ns:film.producer.film|ns:film.production_company.films M0 .
  ?x1 a ns:business.employer .
  M2 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0 .
  M2 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
  M2 ns:people.person.employment_history/ns:business.employment_tenure.company M3 .
  M4 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0 .
  M4 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
  M4 ns:people.person.employment_history/ns:business.employment_tenure.company M3
  }