user: Question: Which opponent led to a 56-59 record?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['August 2', '@ Mets', '8 - 9 (11)', 'Santana (2-5)', 32453.0, '52-55']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Record" = '56-59';