user: Question: Which opponent has a loss of Trout (7-4)?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Save']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['July 1', '@ Phillies', '3 - 1', 'Denny (5-6)', 'Smith (17)']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Loss" = 'Trout (7-4)';