user: Question: What is the qual for rank 20?
Columns: ['Year', 'Start', 'Qual', 'Rank', 'Finish', 'Laps']
Types: ['text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['1948', '21', '127.968', '6', '5', 200.0]
SQL:

assistant: SELECT "Qual" FROM "Table" WHERE "Rank" = '20';