question: What writer of M0 and M1 was M3 's Japanese actor 's parent
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x1 .
  ?x1 ns:film.actor.film/ns:film.performance.character M3 .
  ?x1 ns:people.person.nationality ns:m.03_3d
  }