user: Question: When did the match take place that had an away team score of 12.12 (84)?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['St Kilda', '7.7 (49)', 'South Melbourne', '13.15 (93)', 'Junction Oval', 21000.0, '30 June 1951']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Away team score" = '12.12 (84)';