Hay is related to Cow. Cow is related to Big. Big is related to Crop. 
Tablespoon is derived from Spoon. you are likely to find Spoon in/at/on Table. you are likely to find Breakfast in/at/on Table. Breakfast cannot be Necessary. 
Hay <--RelatedTo--> Cow <--RelatedTo--> Big <--RelatedTo--> Crop 
Tablespoon --DerivedFrom--> Spoon --AtLocation--> Table <--AtLocation-- Breakfast --NotHasProperty--> Necessary 