Rub is related to Push. Push is a synonym of Shove. 
Representation is a synonym of Agency. Organ is a type of Agency. Liver is a type of Organ. Liver is related to Liberty. 
Rub <--RelatedTo--> Push <--Synonym--> Shove 
Representation <--Synonym--> Agency <--IsA-- Organ <--IsA-- Liver <--RelatedTo--> Liberty 