Was a art director influenced by M3 's employee , influenced by M1 , and influenced by M2
SELECT count(*) WHERE {
?x0 a ns:film.film_art_director .
?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:people.person.employment_history/ns:business.employment_tenure.company M3
}