Stone is related to Diamond. Diamond is related to Precious. Precious is the opposite of Cheap. Cheap is a different concept from Expense. 
Divide is related to Wall. Wall is related to Home. 
Stone <--RelatedTo--> Diamond <--RelatedTo--> Precious <--Antonym--> Cheap <--DistinctFrom--> Expense 
Divide <--RelatedTo--> Wall <--RelatedTo--> Home 