question: Did M0 's writer direct , write , and executive produce a sequel of M1
query: SELECT count(*) WHERE {
  ?x0 ns:film.director.film ?x1 .
  ?x0 ns:film.producer.films_executive_produced ?x1 .
  ?x0 ns:film.writer.film ?x1 .
  ?x0 ns:film.writer.film M0 .
  ?x1 ns:film.film.prequel M1
  }