user: Question: Who is the away side when Collingwood is at home?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['North Melbourne', '9.9 (63)', 'Richmond', '12.10 (82)', 'Arden Street Oval', 10602.0, '25 August 1962']
SQL:

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