question: Was M2 's sequel executive produced by M0 , edited by M1 , and produced by a screenwriter
query: SELECT count(*) WHERE {
  ?x0 ns:film.film.edited_by M1 .
  ?x0 ns:film.film.executive_produced_by M0 .
  ?x0 ns:film.film.prequel M2 .
  ?x0 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
  ?x1 a ns:film.writer
  }