Elderly is derived from Elder. Elder is the opposite of Baby. Baby is related to Small. 
Execution is a type of Enforcement. Execution is a synonym of Murder. Murder is a type of Evil. 
Elderly --DerivedFrom--> Elder <--Antonym--> Baby <--RelatedTo--> Small 
Enforcement <--IsA-- Execution <--Synonym--> Murder --IsA--> Evil 