question: Was M1 executive produced by M2 and M3 and edited by a producer of M0 's sequel
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
  ?x1 ns:film.film.prequel M0 .
  M1 ns:film.film.edited_by ?x0 .
  M1 ns:film.film.executive_produced_by M2 .
  M1 ns:film.film.executive_produced_by M3
  }