Was M3 a film whose sequel was distributed by M0 , M1 , and M2
SELECT count(*) WHERE {
?x0 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M0 .
?x0 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M1 .
?x0 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M2 .
M3 a ns:film.film .
M3 ns:film.film.sequel ?x0
}