question: Was a prequel of M0 's prequel produced by a production company
query: SELECT count(*) WHERE {
  ?x0 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
  ?x0 ns:film.film.sequel ?x2 .
  ?x1 a ns:film.production_company .
  ?x2 ns:film.film.sequel M0
  }