CREATE TABLE table_4789 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

When the VFL played at Junction Oval what was the away score?
SELECT "Away team score" FROM table_4789 WHERE "Venue" = 'junction oval'
SELECT "Away team score" FROM "table_4789" WHERE "Venue" = 'junction oval'