CREATE TABLE table_77431 ("Date" TEXT, "Round" TEXT, "Opponent" TEXT, "Venue" TEXT, "Result" TEXT, "Attendance" FLOAT, "Scorers" TEXT)

In which venue was round F?
SELECT "Venue" FROM table_77431 WHERE "Round" = 'f'
SELECT "Venue" FROM "table_77431" WHERE "Round" = 'f'