CREATE TABLE table_4820 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What is the away team's score when the home team scores 18.12 (120)?
SELECT "Away team" FROM table_4820 WHERE "Home team score" = '18.12 (120)'
SELECT "Away team" FROM "table_4820" WHERE "Home team score" = '18.12 (120)'