CREATE TABLE table_10104 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What is the score for the away team at Essendon?
SELECT "Away team score" FROM table_10104 WHERE "Away team" = 'essendon'
SELECT "Away team score" FROM "table_10104" WHERE "Away team" = 'essendon'