Nation is related to Division. Division is related to Army. Army is related to Rank. Rank is related to Undergraduate. 
Claim is a synonym of Challenge. Challenge is related to Risk. Risk is related to Adventure. 
Nation <--RelatedTo--> Division <--RelatedTo--> Army <--RelatedTo--> Rank <--RelatedTo--> Undergraduate 
Claim <--Synonym--> Challenge <--RelatedTo--> Risk <--RelatedTo--> Adventure 