user: Question: What is the Opponent when the Record is 34–31–6?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record', 'Arena', 'Points']
Types: ['text', 'text', 'text', 'text', 'real', 'text', 'text', 'real']
Sample row: ['March 3', '@ Blackhawks', '2–3', 'Giguere (17–16–5)', 21619.0, '31–28–6', 'United Center', 68.0]
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Record" = '34–31–6';