Did a screenwriter influence a art director that M2 and M3 were directed and written by
SELECT count(*) WHERE {
?x0 a ns:film.writer .
?x0 ns:influence.influence_node.influenced ?x1 .
?x1 a ns:film.film_art_director .
?x1 ns:film.director.film M2 .
?x1 ns:film.director.film M3 .
?x1 ns:film.writer.film M2 .
?x1 ns:film.writer.film M3
}