user: Question: How many people were in the 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: ['Carlton', '15.25 (115)', 'Footscray', '5.4 (34)', 'Princes Park', 17419.0, '27 June 1981']
SQL:

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