Elderly is related to Age. Age is related to Annual. 
Confusion would make you want to Contemplate. Confusion is a different concept from Sure. Sure is the opposite of Certain. Certain is related to Kind. 
Elderly <--RelatedTo--> Age <--RelatedTo--> Annual 
Contemplate <--CausesDesire-- Confusion <--DistinctFrom--> Sure <--Antonym--> Certain <--RelatedTo--> Kind 