Room is etymologically related to Rural. Room can be used for Comfort. Convenience is a type of Comfort. 
Young is related to Nest. Nest is a type of Furniture. Chest is a type of Furniture. you are likely to find Chest in/at/on House. 
Rural <--EtymologicallyRelatedTo-- Room --UsedFor--> Comfort <--IsA-- Convenience 
Young <--RelatedTo--> Nest --IsA--> Furniture <--IsA-- Chest --AtLocation--> House 