CREATE TABLE table_57645 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Crowd" FLOAT, "Date" CLOB)

In the match where Melbourne was the away team, how much did they score?
SELECT "Away team score" FROM table_57645 WHERE "Away team" = 'melbourne'
SELECT "Away team score" FROM "table_57645" WHERE "Away team" = 'melbourne'