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

### Instruction:
How many viewers in the UK did episode 50 have?

### Inputs:
table_name: table, columns: ['Episode no.', 'US Airdate', 'US Total viewers', 'UK Airdate', 'UK Total viewers']

### Response:
SELECT UK Total viewers FROM table WHERE Episode no. = 50