Bowl is related to Kitchen. you are likely to find Potato in/at/on Kitchen. Potato is related to Roll. Roll is a type of Film. 
Land is a different concept from Sky. Sky is related to Landscape. 
Bowl <--RelatedTo--> Kitchen <--AtLocation-- Potato <--RelatedTo--> Roll --IsA--> Film 
Land <--DistinctFrom--> Sky <--RelatedTo--> Landscape 