CREATE TABLE table_53686 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What was the away team's score when South Melbourne was the home team?
SELECT "Away team score" FROM table_53686 WHERE "Home team" = 'south melbourne'
SELECT "Away team score" FROM "table_53686" WHERE "Home team" = 'south melbourne'