question: Was M0 's prequel 's editor , executive producer , and director a film editor
query: SELECT count(*) WHERE {
  ?x0 ns:film.director.film ?x1 .
  ?x0 ns:film.editor.film ?x1 .
  ?x0 ns:film.producer.films_executive_produced ?x1 .
  ?x1 ns:film.film.sequel M0
  }