question: Did M2 and M4 star a actor of a company , star a film director , and star M3
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.character ?x1 .
  ?x1 a ns:business.employer .
  ?x2 a ns:film.director .
  M2 ns:film.film.starring/ns:film.performance.actor ?x0 .
  M2 ns:film.film.starring/ns:film.performance.actor ?x2 .
  M2 ns:film.film.starring/ns:film.performance.actor M3 .
  M4 ns:film.film.starring/ns:film.performance.actor ?x0 .
  M4 ns:film.film.starring/ns:film.performance.actor ?x2 .
  M4 ns:film.film.starring/ns:film.performance.actor M3
  }