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