Was a actor influenced by M1 , influenced by a film 's art director , and influenced by M2
SELECT count(*) WHERE {
?x0 a ns:film.actor .
?x0 ns:influence.influence_node.influenced_by ?x1 .
?x0 ns:influence.influence_node.influenced_by M1 .
?x0 ns:influence.influence_node.influenced_by M2 .
?x1 ns:film.film_art_director.films_art_directed ?x2 .
?x2 a ns:film.film
}