CREATE TABLE table_42576 ("Hangul" TEXT, "Hanja" TEXT, "Revised" TEXT, "McCune-Reischauer" TEXT, "2000 n South Korea population *" FLOAT)

What is the Hangul when the Hanja is , ?
SELECT "Hangul" FROM table_42576 WHERE "Hanja" = '西, 徐'
SELECT "Hangul" FROM "table_42576" WHERE "Hanja" = '西, 徐'