user: Question: In what Week was the Attendance 39434?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 4, 1983', 'at Buffalo Bills', 'W 12–0', 78715.0]
SQL:

assistant: SELECT "Week" FROM "Table" WHERE "Attendance" < 39434.0;