question: Did a character 's Japanese actor write and executive produce M0
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.character ?x1 .
  ?x0 ns:film.producer.films_executive_produced M0 .
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:people.person.nationality ns:m.03_3d .
  ?x1 a ns:fictional_universe.fictional_character
  }