Did a film distributor that M1 , M2 , and M3 founded write a film
SELECT count(*) WHERE {
?x0 a ns:film.film_distributor .
?x0 ns:film.writer.film ?x1 .
?x0 ns:organization.organization.founders M1 .
?x0 ns:organization.organization.founders M2 .
?x0 ns:organization.organization.founders M3 .
?x1 a ns:film.film
}