question: Did M2 's star , producer , and editor executive produce M1 , write M3 's prequel , and write M0
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.film M2 .
  ?x0 ns:film.editor.film M2 .
  ?x0 ns:film.producer.films_executive_produced M1 .
  ?x0 ns:film.producer.film|ns:film.production_company.films M2 .
  ?x0 ns:film.writer.film ?x1 .
  ?x0 ns:film.writer.film M0 .
  ?x1 ns:film.film.sequel M3
  }