Who executive produced a film written by M3 and written by a film director and directed M1
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:film.director.film M1 .
?x0 ns:film.producer.films_executive_produced ?x1 .
?x1 a ns:film.film .
?x1 ns:film.film.written_by ?x2 .
?x1 ns:film.film.written_by M3 .
?x2 a ns:film.director
}