Sell is a type of Exchange. Realize is a type of Sell. Realize is related to Discover. Discover is related to Detective. 
Jacket is a type of Dress. Jacket is related to Suit. Suit is related to Business. Business is related to Permit. 
Exchange <--IsA-- Sell <--IsA-- Realize <--RelatedTo--> Discover <--RelatedTo--> Detective 
Dress <--IsA-- Jacket <--RelatedTo--> Suit <--RelatedTo--> Business <--RelatedTo--> Permit 