CREATE TABLE table_15590 ("Club" TEXT, "Played" TEXT, "Drawn" TEXT, "Lost" TEXT, "Points for" TEXT, "Points against" TEXT, "Tries for" TEXT, "Tries against" TEXT, "Try bonus" TEXT)

Which of the participating clubs had 73 tries for?
SELECT "Club" FROM table_15590 WHERE "Tries for" = '73'
SELECT "Club" FROM "table_15590" WHERE "Tries for" = '73'