Mushroom is related to Bell. Bell is related to Object. Book is a type of Object. 
Border is a type of Site. Site is related to Chief. Chief is etymologically related to Cap. 
Mushroom <--RelatedTo--> Bell <--RelatedTo--> Object <--IsA-- Book 
Border --IsA--> Site <--RelatedTo--> Chief --EtymologicallyRelatedTo--> Cap 