user: Question: What venue featured a crowd of over 30000?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Hawthorn', '14.17 (101)', 'Melbourne', '16.14 (110)', 'Glenferrie Oval', 8000.0, '19 May 1928']
SQL:

assistant: SELECT "Venue" FROM "Table" WHERE "Crowd" > 30000.0;