CREATE TABLE table_55315 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What did the Melbourne team score in their away game?
SELECT "Away team score" FROM table_55315 WHERE "Away team" = 'melbourne'
SELECT "Away team score" FROM "table_55315" WHERE "Away team" = 'melbourne'