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

### Instruction:
What won est pc intro when 4k0 (polka brothers) won best amiga intro?

### Inputs:
table_name: table, columns: ['Year', 'Amiga demo', 'PC demo', 'C64 demo', 'Amiga intro', 'PC intro']

### Response:
SELECT PC intro FROM table WHERE Amiga intro = 4k0 (Polka Brothers)