Was a actor influenced by a art director of M2 and influenced by M1
SELECT count(*) WHERE {
?x0 a ns:film.actor .
?x0 ns:influence.influence_node.influenced_by ?x1 .
?x0 ns:influence.influence_node.influenced_by M1 .
?x1 ns:film.film_art_director.films_art_directed M2
}