user: Question: What was the Opponent during the game with a Result of W 37-21?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 5, 1983', 'Dallas Cowboys', 'L 30-31', 55045.0]
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Result" = 'W 37-21';