CREATE TABLE table_78051 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Which away team has a home score of 14.21 (105)?
SELECT "Away team" FROM table_78051 WHERE "Home team score" = '14.21 (105)'
SELECT "Away team" FROM "table_78051" WHERE "Home team score" = '14.21 (105)'