CREATE TABLE table_11487 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

The away team scored 15.9 (99) at what venue?
SELECT "Venue" FROM table_11487 WHERE "Away team score" = '15.9 (99)'
SELECT "Venue" FROM "table_11487" WHERE "Away team score" = '15.9 (99)'