question: What parent of a art director edited M0 's sequel
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.editor.film ?x1 .
  ?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x2 .
  ?x1 ns:film.film.prequel M0 .
  ?x2 a ns:film.film_art_director
  }