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

### Instruction:
How many different brief descriptions are there for crashes with 0/161 fatalities?

### Inputs:
table_name: table, columns: ['date (dd.mm.yyyy)', 'Tail number', 'Location', 'Fatalities', 'Brief description']

### Response:
SELECT COUNT Brief description FROM table WHERE Fatalities = 0/161