user: Question: When the crowd was over 16000 people and South Melbourne was the away team, what date was the game?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Collingwood', '19.24 (138)', 'South Melbourne', '12.14 (86)', 'Victoria Park', 25000.0, '10 May 1947']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Crowd" > 16000.0 AND "Away team" = 'South Melbourne';