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

### Instruction:
Who had the fasted lap in motorsport arena oschersleben?

### Inputs:
table_name: table, columns: ['Round', 'Circuit', 'Date', 'Pole position', 'Fastest lap', 'Winning driver', 'Winning team']

### Response:
SELECT Fastest lap FROM table WHERE Circuit = Motorsport Arena Oschersleben