user: Question: What home team played the away team of Richmond?
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', '16.10 (106)', 'South Melbourne', '11.12 (78)', 'Junction Oval', 21500.0, '10 May 1930']
SQL:

assistant: SELECT "Home team" FROM "Table" WHERE "Away team" = 'Richmond';