CREATE TABLE table_78193 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

When the away team scored 16.21 (117), what was the home teams score?
SELECT "Home team score" FROM table_78193 WHERE "Away team score" = '16.21 (117)'
SELECT "Home team score" FROM "table_78193" WHERE "Away team score" = '16.21 (117)'