user: Question: What is the Week of the game against Minnesota Vikings?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 12, 2004', 'Seattle Seahawks', 'L 21-7', '64,900']
SQL:

assistant: SELECT "Week" FROM "Table" WHERE "Opponent" = 'Minnesota Vikings';