Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_6 (chef VARCHAR, restaurant_name VARCHAR, location VARCHAR, original_name VARCHAR)

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

### Accurate SQL ###

SELECT chef FROM table_name_6 WHERE location = "toronto, on" AND original_name = "n/a" AND restaurant_name = "bagel world"