Private is related to Club. Club is related to Exclusive. Exclusive is a synonym of Characteristic. Characteristic is related to Manner. 
Box is related to Closed. Closed is related to Room. Room is etymologically related to Rural. 
Private <--RelatedTo--> Club <--RelatedTo--> Exclusive <--Synonym--> Characteristic <--RelatedTo--> Manner 
Box <--RelatedTo--> Closed <--RelatedTo--> Room --EtymologicallyRelatedTo--> Rural 