Who executive produced M4 's prequel , wrote M1 and M2 , and executive produced M3
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:film.producer.films_executive_produced ?x1 .
?x0 ns:film.producer.films_executive_produced M3 .
?x0 ns:film.writer.film M1 .
?x0 ns:film.writer.film M2 .
?x1 ns:film.film.sequel M4
}