Piece is related to Candy. you are likely to find Candy in/at/on Mall. Mall is related to Shopping. Shopping can cause/lead to Bankruptcy. 
Commodity is related to Gold. Gold is related to Piece. Piece is related to Pizza. you are likely to find Chicken in/at/on Pizza. 
Piece <--RelatedTo--> Candy --AtLocation--> Mall <--RelatedTo--> Shopping --Causes--> Bankruptcy 
Commodity <--RelatedTo--> Gold <--RelatedTo--> Piece <--RelatedTo--> Pizza <--AtLocation-- Chicken 