Was M1 a American female sibling of a art director
SELECT count(*) WHERE {
?x0 a ns:film.film_art_director .
FILTER ( M1 != ?x0 ) .
M1 ns:people.person.gender ns:m.02zsn .
M1 ns:people.person.nationality ns:m.09c7w0 .
M1 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 ?x0
}