Question: Which opponent had round 1?
SQL: SELECT "Opponent" FROM "2-12098629-9" WHERE "Round" = '1';

Question: Which dAte's opponent wAs Dender when the tournAment wAs in the Jupiler LeAgue And the ground wAs A?
SQL: SELECT "Date" FROM "2-12098629-9" WHERE "Opponent" = 'Dender' AND "Tournament" = 'Jupiler League' AND "Ground" = 'A';

Question: Which ground's round was 33?
SQL: SELECT "Ground" FROM "2-12098629-9" WHERE "Round" = '33';