CREATE TABLE table_57641 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

When the away team has a total score of 13.9 (87), what is the name of the away team?
SELECT "Away team" FROM table_57641 WHERE "Away team score" = '13.9 (87)'
SELECT "Away team" FROM "table_57641" WHERE "Away team score" = '13.9 (87)'