CREATE TABLE table_66846 ("Sunday" TEXT, "Monday" TEXT, "Tuesday" TEXT, "Wednesday" TEXT, "Thursday" TEXT, "Friday" TEXT, "Saturday" TEXT)

Which Saturday has a Thursday of mokuy bi
SELECT "Saturday" FROM table_66846 WHERE "Thursday" = '木曜日 mokuyōbi'
SELECT "Saturday" FROM "table_66846" WHERE "Thursday" = '木曜日 mokuyōbi'