Assignment is related to Case. you are likely to find Case in/at/on Trunk. Trunk is part of Automobile. 
Pretty is a synonym of Attractive. Attractive is a synonym of Smart. Smart is a synonym of Sophisticated. 
Assignment <--RelatedTo--> Case --AtLocation--> Trunk --PartOf--> Automobile 
Pretty <--Synonym--> Attractive <--Synonym--> Smart <--Synonym--> Sophisticated 