Interest is a type of Fee. Fee is related to Toll. 
Coat is a synonym of Jacket. Jacket is related to Suit. Suit is related to Clothing. Clothing is related to Button. 
Interest --IsA--> Fee <--RelatedTo--> Toll 
Coat <--Synonym--> Jacket <--RelatedTo--> Suit <--RelatedTo--> Clothing <--RelatedTo--> Button 