you are likely to find Substance in/at/on Container. you are likely to find Container in/at/on Refrigerator. you are likely to find Bowl in/at/on Refrigerator. Bowl is related to Super. 
Shoulder is a type of Edge. Shoulder is related to Tap. 
Substance --AtLocation--> Container --AtLocation--> Refrigerator <--AtLocation-- Bowl <--RelatedTo--> Super 
Edge <--IsA-- Shoulder <--RelatedTo--> Tap 