CREATE TABLE table_15791 ("Club" TEXT, "Played" TEXT, "Drawn" TEXT, "Lost" TEXT, "Points for" TEXT, "Points against" TEXT, "Tries for" TEXT, "Tries against" TEXT, "Try bonus" TEXT, "Losing bonus" TEXT)

What is the points against for the team that played 22 and lost 6?
SELECT "Points against" FROM table_15791 WHERE "Played" = '22' AND "Lost" = '6'
SELECT "Points against" FROM "table_15791" WHERE "Lost" = '6' AND "Played" = '22'