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

### Instruction:
what is the metlink code that opened in 1908?

### Inputs:
table_name: table, columns: ['Station', 'Metlink code', 'Line(s)', 'Service(s)', 'Serves', 'km from Wellington', 'Fare zone(s)', 'Opened']

### Response:
SELECT Metlink code FROM table WHERE Opened = 1908