question: Was a art director a British male actor that directed M4 and M5
query: SELECT count(*) WHERE {
  ?x0 a ns:film.actor .
  ?x0 a ns:film.film_art_director .
  ?x0 ns:film.director.film M4 .
  ?x0 ns:film.director.film M5 .
  ?x0 ns:people.person.gender ns:m.05zppz .
  ?x0 ns:people.person.nationality ns:m.07ssc
  }