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