user: Question: What is the qualification for rank of 29 in 1957?
Columns: ['Year', 'Start', 'Qual', 'Rank', 'Finish', 'Laps']
Types: ['text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['1955', '16', '139.811', '15', '7', 200.0]
SQL:

assistant: SELECT "Qual" FROM "Table" WHERE "Rank" = '29' AND "Year" = '1957';