CREATE TABLE table_4501 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Who was the away team at the game held at Brunswick Street Oval?
SELECT "Away team" FROM table_4501 WHERE "Venue" = 'brunswick street oval'
SELECT "Away team" FROM "table_4501" WHERE "Venue" = 'brunswick street oval'