user: Question: On what date was the crowd over 19298 when South Melbourne was the home team?
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', '10.14 (74)', 'Hawthorn', '15.16 (106)', 'Princes Park', 19298.0, '30 May 1970']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Crowd" > 19298.0 AND "Home team" = 'South Melbourne';