you are likely to find Grape in/at/on Grocery. 
Fix is related to Plunge. Plunge is related to Toilet. you are likely to find Toilet in/at/on Restaurant. you are likely to find Pot in/at/on Restaurant. 
Grocery <--AtLocation-- Grape 
Fix <--RelatedTo--> Plunge <--RelatedTo--> Toilet --AtLocation--> Restaurant <--AtLocation-- Pot 