user: Question: Who was the away team when the home team scored 18.20 (128)?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Hawthorn', '6.17 (53)', 'St Kilda', '16.8 (104)', 'Glenferrie Oval', 11000.0, '18 May 1935']
SQL:

assistant: SELECT "Away team" FROM "Table" WHERE "Home team score" = '18.20 (128)';