CREATE TABLE table_58074 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Which Date has an Away team of south melbourne?
SELECT "Date" FROM table_58074 WHERE "Away team" = 'south melbourne'
SELECT "Date" FROM "table_58074" WHERE "Away team" = 'south melbourne'