CREATE TABLE table_78415 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What did carlton score while away?
SELECT "Away team score" FROM table_78415 WHERE "Away team" = 'carlton'
SELECT "Away team score" FROM "table_78415" WHERE "Away team" = 'carlton'