question: Was M3 's art director a film director that influenced M1 and M2
query: SELECT count(*) WHERE {
  ?x0 a ns:film.director .
  ?x0 ns:film.film_art_director.films_art_directed M3 .
  ?x0 ns:influence.influence_node.influenced M1 .
  ?x0 ns:influence.influence_node.influenced M2
  }