CREATE TABLE table_33328 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What date did South Melbourne play as the Away team?
SELECT "Date" FROM table_33328 WHERE "Away team" = 'south melbourne'
SELECT "Date" FROM "table_33328" WHERE "Away team" = 'south melbourne'