question: Was a prequel of M0 written by , executive produced by , and edited by a film editor
query: SELECT count(*) WHERE {
  ?x0 ns:film.film.edited_by ?x1 .
  ?x0 ns:film.film.executive_produced_by ?x1 .
  ?x0 ns:film.film.sequel M0 .
  ?x0 ns:film.film.written_by ?x1 .
  ?x1 a ns:film.editor
  }