user: Question: What was the lowest week at Ralph Wilson Stadium on October 7, 2001?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Record', 'Game Site', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 9, 2001', 'New Orleans Saints', 'L 6–24', '0–1', 'Ralph Wilson Stadium', '71,447']
SQL:

assistant: SELECT MIN("Week") FROM "Table" WHERE "Game Site" = 'Ralph Wilson Stadium' AND "Date" = 'October 7, 2001';