Was a film 's sequel and prequel produced and directed by M0
SELECT count(*) WHERE {
?x0 ns:film.film.directed_by M0 .
?x0 ns:film.film.prequel ?x1 .
?x0 ns:film.film.produced_by|ns:film.film.production_companies M0 .
?x0 ns:film.film.sequel ?x1 .
?x1 a ns:film.film
}