user: Question: What is the Opponent of the game with a Result of W 13–0?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 11, 1960', 'at New York Titans', 'L 27–3', 10200.0]
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Result" = 'W 13–0';