Brown is related to Nest. Nest is related to Structure. Structure is related to General. 
Chief is related to Importance. Emphasis is a type of Importance. Emphasis is a synonym of Accent. Border can be used for Accent. 
Brown <--RelatedTo--> Nest <--RelatedTo--> Structure <--RelatedTo--> General 
Chief <--RelatedTo--> Importance <--IsA-- Emphasis <--Synonym--> Accent <--UsedFor-- Border 