CREATE TABLE table_55170 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

How much did the away team St Kilda score?
SELECT "Away team score" FROM table_55170 WHERE "Away team" = 'st kilda'
SELECT "Away team score" FROM "table_55170" WHERE "Away team" = 'st kilda'