Hostile is a synonym of Sharp. Sharp is a synonym of Brilliant. Brilliant is a synonym of Striking. 
House is related to Shell. Shell is related to Case. Case is the opposite of Capital. 
Hostile <--Synonym--> Sharp <--Synonym--> Brilliant <--Synonym--> Striking 
House <--RelatedTo--> Shell <--RelatedTo--> Case <--Antonym--> Capital 