Wooden is related to Staff. Staff is a type of Body. Body is related to Bay. 
Mask entails/necessarily involves Cook. Cook is related to Person. you are likely to find Person in/at/on Demonstration. you are likely to find Crowd in/at/on Demonstration. 
Wooden <--RelatedTo--> Staff --IsA--> Body <--RelatedTo--> Bay 
Mask --Entails--> Cook <--RelatedTo--> Person --AtLocation--> Demonstration <--AtLocation-- Crowd 