Fair is a synonym of Clean. Wash is a type of Clean. Wash is the opposite of Being. Being is related to Actual. 
Chase is related to Cat. you are likely to find Cat in/at/on Alley. Alley can be Dark. Dark is related to Chocolate. 
Fair <--Synonym--> Clean <--IsA-- Wash <--Antonym--> Being <--RelatedTo--> Actual 
Chase <--RelatedTo--> Cat --AtLocation--> Alley --HasProperty--> Dark <--RelatedTo--> Chocolate 