user: Question: Which loss has a Record of 54-39?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Record']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['July 1', 'Yankees', '6 - 1 (12)', 'Musselman (6-2)', '45-31']
SQL:

assistant: SELECT "Loss" FROM "Table" WHERE "Record" = '54-39';