question: Did a film director direct M3 's sequel and write M0 , M1 , and M2
query: SELECT count(*) WHERE {
  ?x0 ns:film.director.film ?x1 .
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:film.writer.film M2 .
  ?x1 ns:film.film.prequel M3
  }