Sum is a type of Whole. Sum is a synonym of Quarter. Quarter is related to Money. Money is related to Mortgage. 
Realize is a type of Make. Metal can be used for Make. Metal is the opposite of Wooden. Wooden is derived from Wood. 
Whole <--IsA-- Sum <--Synonym--> Quarter <--RelatedTo--> Money <--RelatedTo--> Mortgage 
Realize --IsA--> Make <--UsedFor-- Metal <--Antonym--> Wooden --DerivedFrom--> Wood 