user: Question: If the Home team is Carlton, what's the lowest Crowd found?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Geelong', '10.15 (75)', 'Richmond', '11.13 (79)', 'Kardinia Park', 22500.0, '4 June 1949']
SQL:

assistant: SELECT MIN("Crowd") FROM "Table" WHERE "Home team" = 'Carlton';