Did a actor direct M1 , direct M2 , and executive produce a film
SELECT count(*) WHERE {
?x0 a ns:film.actor .
?x0 ns:film.director.film M1 .
?x0 ns:film.director.film M2 .
?x0 ns:film.producer.films_executive_produced ?x1 .
?x1 a ns:film.film
}