user: Question: Who was the Winner at Campbelltown Sports Stadium?
Columns: ['Winner', 'Score', 'Date', 'Venue', 'Crowd']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Sydney Roosters', '10 - 4', '17/02/2007', 'Sydney Football Stadium', 16198.0]
SQL:

assistant: SELECT "Winner" FROM "Table" WHERE "Venue" = 'Campbelltown Sports Stadium';