Was M2 directed by M1 's director , directed by M3 , and directed by a producer of M0
SELECT count(*) WHERE {
?x0 ns:film.producer.film|ns:film.production_company.films M0 .
?x1 ns:film.director.film M1 .
M2 ns:film.film.directed_by ?x0 .
M2 ns:film.film.directed_by ?x1 .
M2 ns:film.film.directed_by M3
}