Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
In the circuit Showevent Olympiastadion München, where the winning driver is Bruno Spengler, what is the pole position?

### Inputs:
table_name: table, columns: ['Round', 'Circuit', 'Date', 'Pole Position', 'Fastest Lap', 'Winning Driver', 'Winning Team']

### Response:
SELECT Pole Position FROM table WHERE Winning Driver = Bruno Spengler AND Circuit = Showevent Olympiastadion München