user: Question: Tell me the opponent for attendance of 55,527
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 5, 1993', 'at Los Angeles Raiders', 'L 24-7', '44,120']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Attendance" = '55,527';