Was a character a art director of M1 , M2 , M3 , M4 , M5 , and M6
SELECT count(*) WHERE {
?x0 a ns:fictional_universe.fictional_character .
?x0 ns:film.film_art_director.films_art_directed M1 .
?x0 ns:film.film_art_director.films_art_directed M2 .
?x0 ns:film.film_art_director.films_art_directed M3 .
?x0 ns:film.film_art_director.films_art_directed M4 .
?x0 ns:film.film_art_director.films_art_directed M5 .
?x0 ns:film.film_art_director.films_art_directed M6
}