user: Question: Who was the opponent for a game over 31 and a date over 30?
Columns: ['Game', 'Date', 'Opponent', 'Score', 'Decision', 'Location/Attendance', 'Record']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [23.0, 4.0, 'Philadelphia Flyers', '3-2 (OT)', 'Clemmensen', 'Wachovia Center - 19,577', '13-8-2']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Game" > 31.0 AND "Date" > 30.0;