you are likely to find Backyard in/at/on Country. Country is related to Economy. 
National is related to Tax. Tax is related to Deficit. Deficit is the opposite of Profit. Profit is related to Fiscal. 
Backyard --AtLocation--> Country <--RelatedTo--> Economy 
National <--RelatedTo--> Tax <--RelatedTo--> Deficit <--Antonym--> Profit <--RelatedTo--> Fiscal 