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

### Instruction:
What chef that has a location in Toronto, ON, that has n/a as the original name, and a Restaurant Name of Bagel World?

### Inputs:
table_name: table, columns: ['Restaurant Name', 'Original Name', 'Location', 'Chef', 'Designer', 'Still Open?']

### Response:
SELECT Chef FROM table WHERE Location = toronto, on AND Original Name = n/a AND Restaurant Name = bagel world