CREATE TABLE table_name_6 (chef VARCHAR(255), restaurant_name VARCHAR(255), location VARCHAR(255), original_name VARCHAR(255))
What chef that has a location in Toronto, ON, that has n/a as the original name, and a Restaurant Name of Bagel World?
    
SQL: SELECT chef FROM table_name_6 WHERE location = "toronto, on" AND original_name = "n/a" AND restaurant_name = "bagel world"