Which producer and director of a film directed M1 , M2 , and M3 and executive produced M0
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.director.film ?x1 .
?x0 ns:film.director.film M1 .
?x0 ns:film.director.film M2 .
?x0 ns:film.director.film M3 .
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
?x1 a ns:film.film
}