user: Question: Tell me the average original week for Soldier Field
Columns: ['Original week', 'Date', 'Opponent', 'Result', 'Venue']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 12, 1982', 'Tampa Bay Buccaneers', 'W 17–10', 'Hubert H. Humphrey Metrodome']
SQL:

assistant: SELECT AVG("Original week") FROM "Table" WHERE "Venue" = 'Soldier Field';