CREATE TABLE table_19039 ("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 points for with points against being 556
SELECT "Points for" FROM table_19039 WHERE "Points against" = '556'
SELECT "Points for" FROM "table_19039" WHERE "Points against" = '556'