user: Question: How big was the crowd when the South Dragons were the away team at the Gold Coast Convention Centre?
Columns: ['Date', 'Home team', 'Score', 'Away team', 'Venue', 'Crowd', 'Box Score', 'Report']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['1 October', 'Perth Wildcats', '105-92', 'Wollongong Hawks', 'Challenge Stadium', 4200.0, 'box score', 'report']
SQL:

assistant: SELECT "Crowd" FROM "Table" WHERE "Away team" = 'South Dragons' AND "Venue" = 'Gold Coast Convention Centre';