Failure is a type of Disorder. Disorder is the opposite of Structure. Structure is related to Form. Form is related to Clay. 
Variety is a synonym of Race. Race is related to Reward. 
Failure --IsA--> Disorder <--Antonym--> Structure <--RelatedTo--> Form <--RelatedTo--> Clay 
Variety <--Synonym--> Race <--RelatedTo--> Reward 