user: Question: When the home team is Richmond, what was the away team playing?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Fitzroy', '20.13 (133)', 'Melbourne', '11.11 (77)', 'Brunswick Street Oval', 7000.0, '23 May 1942']
SQL:

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