Unfair is the opposite of Just. Just is related to Equality. 
Doll can be Small. you are likely to find Doll in/at/on Closet. you are likely to find Coat in/at/on Closet. 
Unfair <--Antonym--> Just <--RelatedTo--> Equality 
Small <--HasProperty-- Doll --AtLocation--> Closet <--AtLocation-- Coat 