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

### Instruction:
Who was the iron chef when herb Faust was the challenger?

### Inputs:
table_name: table, columns: ['Episode', 'Airdate', 'Iron Chef', 'Challenger', 'Theme Ingredient', 'Winner']

### Response:
SELECT Iron Chef FROM table WHERE Challenger = Herb Faust