What sibling of a person did M1 's art director and director influence
SELECT DISTINCT ?x0 WHERE {
?x0 ns:influence.influence_node.influenced_by ?x1 .
?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 ?x2 .
?x1 ns:film.director.film M1 .
?x1 ns:film.film_art_director.films_art_directed M1 .
?x2 a ns:people.person .
FILTER ( ?x0 != ?x2 )
}