What parent of M0 's producer was a art director 's employer
SELECT DISTINCT ?x0 WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x2 .
?x1 a ns:film.film_art_director .
?x2 ns:film.producer.film|ns:film.production_company.films M0
}