Merchant is related to Retail. Retail is a type of Sell. Sell is related to Make. 
Small is related to Soap. Soap is related to Powder. Powder is a synonym of Cocaine. 
Merchant <--RelatedTo--> Retail --IsA--> Sell <--RelatedTo--> Make 
Small <--RelatedTo--> Soap <--RelatedTo--> Powder <--Synonym--> Cocaine 