Gain is related to Acquire. 
you are likely to find Product in/at/on Shelf. you are likely to find Shelf in/at/on Refrigerator. you are likely to find Juice in/at/on Refrigerator. Juice is a form of Jew. 
Gain <--RelatedTo--> Acquire 
Product --AtLocation--> Shelf --AtLocation--> Refrigerator <--AtLocation-- Juice --FormOf--> Jew 