question: Did a producer of a film 's sequel edit and executive produce M0
query: SELECT count(*) WHERE {
  ?x0 ns:film.editor.film M0 .
  ?x0 ns:film.producer.films_executive_produced M0 .
  ?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
  ?x1 ns:film.film.prequel ?x2 .
  ?x2 a ns:film.film
  }