Builder is related to Man. Man is related to Priest. 
River is related to Bank. you are likely to find Merchant in/at/on Bank. Merchant is related to Buyer. Buyer is a synonym of Client. 
Builder <--RelatedTo--> Man <--RelatedTo--> Priest 
River <--RelatedTo--> Bank <--AtLocation-- Merchant <--RelatedTo--> Buyer <--Synonym--> Client 