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

### Instruction:
What was the pole position at the san marino grand prix with michael schumacher as winning driver?

### Inputs:
table_name: table, columns: ['Grand Prix', 'Pole Position', 'Fastest Lap', 'Winning Driver', 'Constructor', 'Report']

### Response:
SELECT Pole Position FROM table WHERE Winning Driver = michael schumacher AND Grand Prix = san marino grand prix