user: Question: Which Week had a Date of December 4, 1960?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 25, 1960', 'at Baltimore Colts', 'L 20-0', '53,818']
SQL:

assistant: SELECT "Week" FROM "Table" WHERE "Date" = 'December 4, 1960';