Chicken is related to House. you are likely to find Curtain in/at/on House. 
Class is related to Stereotype. Stereotype is a type of Representation. Map is a type of Representation. Map is related to Continent. 
Chicken <--RelatedTo--> House <--AtLocation-- Curtain 
Class <--RelatedTo--> Stereotype --IsA--> Representation <--IsA-- Map <--RelatedTo--> Continent 