Servant is the opposite of Freedom. Freedom is related to Nation. 
Sexuality is a synonym of Sex. Fucking is the Sex. Sofa can be used for Fucking. Sofa is a type of Furniture. 
Servant <--Antonym--> Freedom <--RelatedTo--> Nation 
Sexuality <--Synonym--> Sex <--DefinedAs-- Fucking <--UsedFor-- Sofa --IsA--> Furniture 