question: Did a sequel of a film star a film director , star M0 , M1 , and M2 , and star M3
query: SELECT count(*) WHERE {
  ?x0 ns:film.film.prequel ?x1 .
  ?x0 ns:film.film.starring/ns:film.performance.actor ?x2 .
  ?x0 ns:film.film.starring/ns:film.performance.actor M0 .
  ?x0 ns:film.film.starring/ns:film.performance.actor M1 .
  ?x0 ns:film.film.starring/ns:film.performance.actor M2 .
  ?x0 ns:film.film.starring/ns:film.performance.actor M3 .
  ?x1 a ns:film.film .
  ?x2 a ns:film.director
  }