question: Was M2 written by a art director 's parent and edited by a film director
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x1 .
  ?x1 a ns:film.film_art_director .
  ?x2 a ns:film.director .
  M2 ns:film.film.edited_by ?x2 .
  M2 ns:film.film.written_by ?x0
  }