Empire is related to Region. Air is a type of Region. Air is a synonym of Broadcast. 
Entity is related to Corporation. Corporation is related to Voting. Voting is related to Citizen. 
Empire <--RelatedTo--> Region <--IsA-- Air <--Synonym--> Broadcast 
Entity <--RelatedTo--> Corporation <--RelatedTo--> Voting <--RelatedTo--> Citizen 