question: Was M0 a art director that edited and directed M2 , M3 , M4 , M5 , and M6
query: SELECT count(*) WHERE {
  M0 a ns:film.film_art_director .
  M0 ns:film.director.film M2 .
  M0 ns:film.director.film M3 .
  M0 ns:film.director.film M4 .
  M0 ns:film.director.film M5 .
  M0 ns:film.director.film M6 .
  M0 ns:film.editor.film M2 .
  M0 ns:film.editor.film M3 .
  M0 ns:film.editor.film M4 .
  M0 ns:film.editor.film M5 .
  M0 ns:film.editor.film M6
  }