CREATE TABLE table_56850 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

In the match where south melbourne was the away team, who was the home team?
SELECT "Home team" FROM table_56850 WHERE "Away team" = 'south melbourne'
SELECT "Home team" FROM "table_56850" WHERE "Away team" = 'south melbourne'