Mine is related to Valuable. Valuable is related to Silver. Silver is related to Value. Premium is a type of Value. 
Medication is related to Drug. Crack is a type of Drug. Crack is a synonym of Check. 
Mine <--RelatedTo--> Valuable <--RelatedTo--> Silver <--RelatedTo--> Value <--IsA-- Premium 
Medication <--RelatedTo--> Drug <--IsA-- Crack <--Synonym--> Check 