What is the Hangul when the Hanja is 西, 徐?
CREATE TABLE "list" (
  "hangul" text,
  "hanja" text,
  "revised" text,
  "mc_cune_reischauer" text,
  "2000_n_south_korea_population" real
);
SELECT "hangul" FROM "list" WHERE "hanja"='西, 徐';