user: Question: Who was the Opponent on October 31, 1993?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 5, 1993', 'at Chicago Bears', 'W 26–20', '66,900']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Date" = 'October 31, 1993';