user: Question: How many people attended the game 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: ['Footscray', '8.16 (64)', 'Richmond', '5.4 (34)', 'Western Oval', 23965.0, '18 April 1964']
SQL:

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