CREATE TABLE table_52904 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Which away team score also had a home team score of 20.20 (140)?
SELECT "Away team score" FROM table_52904 WHERE "Home team score" = '20.20 (140)'
SELECT "Away team score" FROM "table_52904" WHERE "Home team score" = '20.20 (140)'