CREATE TABLE table_15313 ("Club" TEXT, "Played" TEXT, "Drawn" TEXT, "Lost" TEXT, "Points for" TEXT, "Points against" TEXT, "Tries for" TEXT, "Tries against" TEXT, "Try bonus" TEXT)

what is the amount lost when there is 1 draw and 515 points?
SELECT "Lost" FROM table_15313 WHERE "Drawn" = '1' AND "Points for" = '515'
SELECT "Lost" FROM "table_15313" WHERE "Drawn" = '1' AND "Points for" = '515'