CREATE TABLE table_568 ("Club" TEXT, "Played" TEXT, "Won" TEXT, "Drawn" TEXT, "Lost" TEXT, "Points for" TEXT, "Points against" TEXT, "Tries for" TEXT, "Tries against" TEXT, "Try bonus" TEXT, "Losing bonus" TEXT, "Points" TEXT)

what's the tries against with tries for being 47
SELECT "Tries against" FROM table_568 WHERE "Tries for" = '47'
SELECT "Tries against" FROM "table_568" WHERE "Tries for" = '47'