What art director of M0 , M1 , and M2 was a film 's art director 's sibling
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.film_art_director.films_art_directed M0 .
?x0 ns:film.film_art_director.films_art_directed M1 .
?x0 ns:film.film_art_director.films_art_directed M2 .
?x0 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x1 .
?x1 ns:film.film_art_director.films_art_directed ?x2 .
?x2 a ns:film.film .
FILTER ( ?x0 != ?x1 )
}