CREATE TABLE table_56830 ("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 st kilda?
SELECT "Venue" FROM table_56830 WHERE "Away team" = 'st kilda'
SELECT "Venue" FROM "table_56830" WHERE "Away team" = 'st kilda'