CREATE TABLE table_78552 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Who was South Melbourne's away opponents?
SELECT "Away team" FROM table_78552 WHERE "Home team" = 'south melbourne'
SELECT "Away team" FROM "table_78552" WHERE "Home team" = 'south melbourne'