Who did a art director that M2 influenced and M3 influenced influence
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:influence.influence_node.influenced_by ?x1 .
?x1 a ns:film.film_art_director .
?x1 ns:influence.influence_node.influenced_by M2 .
?x1 ns:influence.influence_node.influenced_by M3
}