user: Question: What is the average week of a game on November 12, 1989?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 10, 1989', 'Phoenix Cardinals', 'L 16-13', 36735.0]
SQL:

assistant: SELECT AVG("Week") FROM "Table" WHERE "Date" = 'November 12, 1989';