CREATE TABLE table_42574 ("Hangul" TEXT, "Hanja" TEXT, "Revised" TEXT, "McCune-Reischauer" TEXT, "2000 n South Korea population *" FLOAT)

What is the McCune-Reischauer when the 2000 n South Korea population * is more than 6,796,227 people, and a Hangul of ?
SELECT "McCune-Reischauer" FROM table_42574 WHERE "2000 n South Korea population *" > '6,796,227' AND "Hangul" = '송'
SELECT "McCune-Reischauer" FROM "table_42574" WHERE "2000 n South Korea population *" > '6,796,227' AND "Hangul" = '송'