question: Did M1 star M2 and M3 , star M4 and M5 , and star a director and editor of M0
query: SELECT count(*) WHERE {
  ?x0 ns:film.director.film M0 .
  ?x0 ns:film.editor.film M0 .
  M1 ns:film.film.starring/ns:film.performance.actor ?x0 .
  M1 ns:film.film.starring/ns:film.performance.actor M2 .
  M1 ns:film.film.starring/ns:film.performance.actor M3 .
  M1 ns:film.film.starring/ns:film.performance.actor M4 .
  M1 ns:film.film.starring/ns:film.performance.actor M5
  }