Separation is a type of State. State is related to Lost. Lost is the opposite of Profit. Profit is related to Marketing. 
Surface is related to Plate. you are likely to find Food in/at/on Plate. Food is related to Tray. 
Separation --IsA--> State <--RelatedTo--> Lost <--Antonym--> Profit <--RelatedTo--> Marketing 
Surface <--RelatedTo--> Plate <--AtLocation-- Food <--RelatedTo--> Tray 