CREATE TABLE table_58051 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What was the away score when the game was at Brunswick Street Oval?
SELECT "Away team score" FROM table_58051 WHERE "Venue" = 'brunswick street oval'
SELECT "Away team score" FROM "table_58051" WHERE "Venue" = 'brunswick street oval'