Was M0 's editor a art director and writer of M1 's sequel
SELECT count(*) WHERE {
?x0 ns:film.editor.film M0 .
?x0 ns:film.film_art_director.films_art_directed ?x1 .
?x0 ns:film.writer.film ?x1 .
?x1 ns:film.film.prequel M1
}