Shock is related to Reaction. Reaction is related to Effect. Effect is related to Drop. Drop is related to Bubble. 
Novel is related to Big. Big is related to Room. 
Shock <--RelatedTo--> Reaction <--RelatedTo--> Effect <--RelatedTo--> Drop <--RelatedTo--> Bubble 
Novel <--RelatedTo--> Big <--RelatedTo--> Room 