Which art director that executive produced M2 and wrote M1 wrote M3 's prequel
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.film_art_director .
?x0 ns:film.producer.films_executive_produced M2 .
?x0 ns:film.writer.film ?x1 .
?x0 ns:film.writer.film M1 .
?x1 ns:film.film.sequel M3
}