Top is a type of Platform. Platform is a synonym of Sidewalk. Sidewalk can be Smooth. 
Be is a synonym of Hunger. Cooking can cause/lead to Hunger. one thing you do when you Cooking is Spill. 
Top --IsA--> Platform <--Synonym--> Sidewalk --HasProperty--> Smooth 
Be <--Synonym--> Hunger <--Causes-- Cooking --HasSubevent--> Spill 