user: Question: Who was the away team when they scored 12.9 (81) at the game?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Richmond', '16.14 (110)', 'St Kilda', '8.8 (56)', 'Punt Road Oval', 13000.0, '1 July 1933']
SQL:

assistant: SELECT "Away team" FROM "Table" WHERE "Away team score" = '12.9 (81)';