Promise is related to Sure. Sure is similar to True. True is the opposite of Bad. Bad is the opposite of Adequate. 
Memory is related to Skull. Skull is related to Scary. Scary is related to Horror. Horror is related to Scared. 
Promise <--RelatedTo--> Sure <--SimilarTo--> True <--Antonym--> Bad <--Antonym--> Adequate 
Memory <--RelatedTo--> Skull <--RelatedTo--> Scary <--RelatedTo--> Horror <--RelatedTo--> Scared 