question: Were M3 and M6 directed by a director of M0 , M1 , and M2 , written by M5 , and executive produced by M4
query: SELECT count(*) WHERE {
  ?x0 ns:film.director.film M0 .
  ?x0 ns:film.director.film M1 .
  ?x0 ns:film.director.film M2 .
  M3 ns:film.film.directed_by ?x0 .
  M3 ns:film.film.executive_produced_by M4 .
  M3 ns:film.film.written_by M5 .
  M6 ns:film.film.directed_by ?x0 .
  M6 ns:film.film.executive_produced_by M4 .
  M6 ns:film.film.written_by M5
  }