Who was a screenwriter that M2 and M3 were directed by and were executive produced by
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.writer .
?x0 a ns:people.person .
?x0 ns:film.director.film M2 .
?x0 ns:film.director.film M3 .
?x0 ns:film.producer.films_executive_produced M2 .
?x0 ns:film.producer.films_executive_produced M3
}