CREATE TABLE table_33381 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

For the game where the away team was North Melbourne, what was the venue?
SELECT "Venue" FROM table_33381 WHERE "Away team" = 'north melbourne'
SELECT "Venue" FROM "table_33381" WHERE "Away team" = 'north melbourne'