City can be Dark. you are likely to find Supermarket in/at/on City. you are likely to find Grocery in/at/on Supermarket. Vegetable is a type of Grocery. 
Term is related to Pet. Pet is related to Bird. Bird is related to Statue. 
Dark <--HasProperty-- City <--AtLocation-- Supermarket <--AtLocation-- Grocery <--IsA-- Vegetable 
Term <--RelatedTo--> Pet <--RelatedTo--> Bird <--RelatedTo--> Statue 