CREATE TABLE table_54489 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What was home team South Melbourne's opponents score?
SELECT "Away team score" FROM table_54489 WHERE "Home team" = 'south melbourne'
SELECT "Away team score" FROM "table_54489" WHERE "Home team" = 'south melbourne'