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

### Instruction:
Which Binibining Pilipinas-World has a Second runner-up of sonia santiago?

### Inputs:
table_name: table, columns: ['Year', 'Binibining Pilipinas-Universe', 'Binibining Pilipinas-World', 'Binibining Pilipinas International', 'Miss Maja Pilipinas', 'First runner-up', 'Second runner-up']

### Response:
SELECT Binibining Pilipinas-World FROM table WHERE Second runner-up = sonia santiago