Was M1 distributed by a person , distributed by M2 , and produced by M3
SELECT count(*) WHERE {
?x0 a ns:people.person .
M1 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor ?x0 .
M1 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M2 .
M1 ns:film.film.produced_by|ns:film.film.production_companies M3
}