CREATE TABLE table_56253 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What is the largest crowd for an Away team of st kilda?
SELECT MAX("Crowd") FROM table_56253 WHERE "Away team" = 'st kilda'
SELECT MAX("Crowd") FROM "table_56253" WHERE "Away team" = 'st kilda'