CREATE TABLE table_51359 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Which Away team has an Away team score of 15.13 (103)?
SELECT "Away team" FROM table_51359 WHERE "Away team score" = '15.13 (103)'
SELECT "Away team" FROM "table_51359" WHERE "Away team score" = '15.13 (103)'