CREATE TABLE table_68210 ("Number" FLOAT, "Name of the song" TEXT, "Singer" TEXT, "Drama" TEXT, "Kind of the song" TEXT)

Which song has a ending theme, and is sung by miriam yeung?
SELECT "Name of the song" FROM table_68210 WHERE "Kind of the song" = 'ending theme' AND "Singer" = 'miriam yeung'
SELECT "Name of the song" FROM "table_68210" WHERE "Kind of the song" = 'ending theme' AND "Singer" = 'miriam yeung'