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

### Instruction:
Which female challengers featured in episode 28?

### Inputs:
table_name: table, columns: ['Episode', 'Contest', 'Original airdate', 'Challengers (Female)', 'Challengers (Male)', 'Events']

### Response:
SELECT Challengers (Female) FROM table WHERE Episode = 28