question: Did a film director that M1 and M2 were written by and M3 and M4 were written by write M5
query: SELECT count(*) WHERE {
  ?x0 a ns:film.director .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:film.writer.film M2 .
  ?x0 ns:film.writer.film M3 .
  ?x0 ns:film.writer.film M4 .
  ?x0 ns:film.writer.film M5
  }