user: Question: What is the largest crowd at Lake 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: ['Richmond', '8.11 (59)', 'St Kilda', '6.12 (48)', 'Punt Road Oval', 18000.0, '7 May 1927']
SQL:

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