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