Hand is related to Rub. Rub is a synonym of Wipe. 
Favor is a type of Spare. Favor is the opposite of Discrimination. Racism is a type of Discrimination. Racial is derived from Racism. 
Hand <--RelatedTo--> Rub <--Synonym--> Wipe 
Spare <--IsA-- Favor <--Antonym--> Discrimination <--IsA-- Racism <--DerivedFrom-- Racial 