Soul is related to Mate. Mate is the opposite of Opponent. 
Famous is related to Description. Description is related to Hard. Hard is a different concept from Simple. Simple is a synonym of Natural. 
Soul <--RelatedTo--> Mate <--Antonym--> Opponent 
Famous <--RelatedTo--> Description <--RelatedTo--> Hard <--DistinctFrom--> Simple <--Synonym--> Natural 