question: Who executive produced a prequel of M5 's prequel and edited M1 , M2 , M3 , and M4
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:film.editor.film M1 .
  ?x0 ns:film.editor.film M2 .
  ?x0 ns:film.editor.film M3 .
  ?x0 ns:film.editor.film M4 .
  ?x0 ns:film.producer.films_executive_produced ?x1 .
  ?x1 ns:film.film.sequel ?x2 .
  ?x2 ns:film.film.sequel M5
  }