you are likely to find Entrance in/at/on Stadium. Valley is a type of Stadium. 
Lip is related to Skin. Skin is etymologically related to Shed. Shed is a synonym of Spill. one thing you do when you Cooking is Spill. 
Entrance --AtLocation--> Stadium <--IsA-- Valley 
Lip <--RelatedTo--> Skin --EtymologicallyRelatedTo--> Shed <--Synonym--> Spill <--HasSubevent-- Cooking 