CREATE TABLE table_12066 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

In the game against Essendon at home, what did the away team score?
SELECT "Away team score" FROM table_12066 WHERE "Home team" = 'essendon'
SELECT "Away team score" FROM "table_12066" WHERE "Home team" = 'essendon'