user: Question: What was the attendance when the VFL played 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: ['Melbourne', '11.13 (79)', 'Richmond', '6.15 (51)', 'MCG', 41634.0, '21 April 1962']
SQL:

assistant: SELECT "Crowd" FROM "Table" WHERE "Venue" = 'lake oval';