Bank is related to Clerk. 
Breakfast is a type of Feed. Breakfast is related to Lunch. you are likely to find Lunch in/at/on Desk. you are likely to find Light in/at/on Desk. 
Bank <--RelatedTo--> Clerk 
Feed <--IsA-- Breakfast <--RelatedTo--> Lunch --AtLocation--> Desk <--AtLocation-- Light 