user: Question: Name the total number of opponets for  05/09/2009
Columns: ['Competition', 'Round', 'Opponent', 'Result', 'Score', 'Home/Away', 'Venue', 'Attendance', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Friendly', 'N/A', 'Harlequins RL', 'N/A', 'A-A a[› ]', 'Away', 'Twickenham Stoop Stadium', 'N/A', '29/01/2009']
SQL:

assistant: SELECT COUNT("Opponent") FROM "Table" WHERE "Date" = '05/09/2009';