user: Question: What's the largest crowd that attended a game at Junction Oval?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Essendon', '18.15 (123)', 'St Kilda', '3.6 (24)', 'Windy Hill', 5000.0, '28 July 1945']
SQL:

assistant: SELECT MAX("Crowd") FROM "Table" WHERE "Venue" = 'Junction Oval';