CREATE TABLE table_10991 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Which venue had an away team that scored 13.8 (86)?
SELECT "Venue" FROM table_10991 WHERE "Away team score" = '13.8 (86)'
SELECT "Venue" FROM "table_10991" WHERE "Away team score" = '13.8 (86)'