CREATE TABLE table_15003 ("Rank" FLOAT, "Nation" TEXT, "Gold" FLOAT, "Silver" FLOAT, "Bronze" FLOAT, "Total" FLOAT)

Name the sum of gold when Bronze is less than 0
SELECT SUM("Gold") FROM table_15003 WHERE "Bronze" < '0'
SELECT SUM("Gold") FROM "table_15003" WHERE "Bronze" < '0'