Seller is a type of Merchant. Merchant is related to Small. Small is related to Narrow. Narrow is related to Sea. 
Relate is a type of Be. Bind is a type of Relate. Bind is a synonym of Restrict. 
Seller --IsA--> Merchant <--RelatedTo--> Small <--RelatedTo--> Narrow <--RelatedTo--> Sea 
Be <--IsA-- Relate <--IsA-- Bind <--Synonym--> Restrict 