question: Was M0 's director and executive producer a editor of M1 's prequel
query: SELECT count(*) WHERE {
  ?x0 ns:film.director.film M0 .
  ?x0 ns:film.editor.film ?x1 .
  ?x0 ns:film.producer.films_executive_produced M0 .
  ?x1 ns:film.film.sequel M1
  }