Joint is related to Common. Common is the opposite of Elite. Cream is a type of Elite. 
Legal is related to Limit. Limit is related to Speed. Speed is related to Express. Express is related to Super. 
Joint <--RelatedTo--> Common <--Antonym--> Elite <--IsA-- Cream 
Legal <--RelatedTo--> Limit <--RelatedTo--> Speed <--RelatedTo--> Express <--RelatedTo--> Super 