Was M4 produced and directed by a film producer that directed M1 , M2 , and M3
SELECT count(*) WHERE {
?x0 a ns:film.producer .
?x0 ns:film.director.film M1 .
?x0 ns:film.director.film M2 .
?x0 ns:film.director.film M3 .
M4 ns:film.film.directed_by ?x0 .
M4 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}