user: Question: Who was the Opponent when the Attendance was 38,150?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['June 2', '@ Indians', '5–0', 'Nagy (3–2)', '41,545', '15–18']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Attendance" = '38,150';