CREATE TABLE table_55311 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Which Venue has an Away team of south melbourne?
SELECT "Venue" FROM table_55311 WHERE "Away team" = 'south melbourne'
SELECT "Venue" FROM "table_55311" WHERE "Away team" = 'south melbourne'