Busy is related to Main. Main is related to Common. Common is the opposite of Elite. 
Detail is related to Fine. Fine is the opposite of Okay. Okay is a synonym of Approve. 
Busy <--RelatedTo--> Main <--RelatedTo--> Common <--Antonym--> Elite 
Detail <--RelatedTo--> Fine <--Antonym--> Okay <--Synonym--> Approve 