user: Question: How many people were in the crowd with the away team being collingwood?
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', '14.14 (98)', 'South Melbourne', '14.14 (98)', 'Moorabbin Oval', 18563.0, '14 May 1977']
SQL:

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