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

### Instruction:
What is the Length (m) of the Koppenberg course?

### Inputs:
table_name: table, columns: ['Number', 'Name', 'Kilometer', 'Pavement', 'Length (m)', 'Average climb (%)']

### Response:
SELECT Length (m) FROM table WHERE Name = koppenberg