user: ### NOW ANSWER:
Question: What is the Time/Retired for the BMW Sauber, and Nick Heidfeld?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Lewis Hamilton', 'McLaren - Mercedes', '56', '1:31:57.403', '1']
SQL:

assistant: SELECT "Time/Retired" FROM "Table" WHERE "Constructor" = 'BMW Sauber' AND "Driver" = 'Nick Heidfeld';