question: Did a male director and art director of M1 direct M2 and M3
query: SELECT count(*) WHERE {
  ?x0 ns:film.director.film M1 .
  ?x0 ns:film.director.film M2 .
  ?x0 ns:film.director.film M3 .
  ?x0 ns:film.film_art_director.films_art_directed M1 .
  ?x0 ns:people.person.gender ns:m.05zppz
  }