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

### Instruction:
Who had the mountains classification when borut božič was the winner?

### Inputs:
table_name: table, columns: ['Stage', 'Winner', 'General classification', 'Sprint Classification', 'Mountains Classification', 'Points Classification', 'Team Classification']

### Response:
SELECT Mountains Classification FROM table WHERE Winner = Borut Božič