user: Question: Who was the opponent at the game when the record was 4-5?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['April 3', '@ Royals', '4 - 3', 'Gubicza (0-1)', 38595.0, '1-0']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Record" = '4-5';