Did a film director distribute M1 and distribute a film
SELECT count(*) WHERE {
?x0 a ns:film.director .
?x0 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film ?x1 .
?x0 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film M1 .
?x1 a ns:film.film
}