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

### Instruction:
Which category was the berlin file up to win in 2013?

### Inputs:
table_name: table, columns: ['Year', 'Award', 'Category', 'Nominated work', 'Result']

### Response:
SELECT Category FROM table WHERE Year = 2013 AND Nominated work = the berlin file