user: Question: How many were in the crowd when North Melbourne was the home team?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Melbourne', '9.10 (64)', 'Richmond', '14.12 (96)', 'MCG', 19583.0, '29 April 1933']
SQL:

assistant: SELECT "Crowd" FROM "Table" WHERE "Home team" = 'North Melbourne';