question: Was a sequel of M1 directed by M2 , executive produced by M0 , and produced by M3 's director
query: SELECT count(*) WHERE {
  ?x0 ns:film.film.directed_by M2 .
  ?x0 ns:film.film.executive_produced_by M0 .
  ?x0 ns:film.film.prequel M1 .
  ?x0 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
  ?x1 ns:film.director.film M3
  }