Concept is related to Amount. Amount is related to Debt. Debt is the opposite of Credit. 
Center is related to Market. Market is related to Small. Small is related to Wood. Wood is related to Frame. 
Concept <--RelatedTo--> Amount <--RelatedTo--> Debt <--Antonym--> Credit 
Center <--RelatedTo--> Market <--RelatedTo--> Small <--RelatedTo--> Wood <--RelatedTo--> Frame 