user: Question: Who is the winning driver of the Oschersleben circuit with Timo Scheider as the pole position?
Columns: ['Circuit', 'Date', 'Pole position', 'Fastest Lap', 'Winning driver', 'Winning team', 'Winning manufacturer']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Präsentation Düsseldorf', '6 April', 'no race', 'no race', 'no race', 'no race', 'no race']
SQL:

assistant: SELECT "Winning driver" FROM "Table" WHERE "Pole position" = 'Timo Scheider' AND "Circuit" = 'Oschersleben';