user: Question: What is Fitzroy's smallest crowd size?
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', '13.19 (97)', 'Melbourne', '16.12 (108)', 'Kardinia Park', 7800.0, '10 May 1941']
SQL:

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