user: Question: How big was the crowd when collingwood visited?
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', '8.16 (64)', 'Essendon', '11.18 (84)', 'Brunswick Street Oval', 17500.0, '17 April 1965']
SQL:

assistant: SELECT "Crowd" FROM "Table" WHERE "Away team" = 'collingwood';