Purchase requires Money. Money is related to Finance. Inflation is a type of Finance. Inflation is related to Pump. 
Counter is a synonym of Reply. Reply is related to Writing. Writing is related to Sequence. Gene is a type of Sequence. 
Purchase --HasPrerequisite--> Money <--RelatedTo--> Finance <--IsA-- Inflation <--RelatedTo--> Pump 
Counter <--Synonym--> Reply <--RelatedTo--> Writing <--RelatedTo--> Sequence <--IsA-- Gene 