CREATE TABLE table_32812 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What was the away team's score when the crowd at Arden Street Oval was larger than 31,481?
SELECT "Away team score" FROM table_32812 WHERE "Crowd" > '31,481' AND "Venue" = 'arden street oval'
SELECT "Away team score" FROM "table_32812" WHERE "Crowd" > '31,481' AND "Venue" = 'arden street oval'