Walk is a type of Behave. Behave is a synonym of Carry. 
Reform is a type of Campaign. Reform is a synonym of Repair. Repair is a synonym of Resort. Resort is related to Expensive. 
Walk --IsA--> Behave <--Synonym--> Carry 
Campaign <--IsA-- Reform <--Synonym--> Repair <--Synonym--> Resort <--RelatedTo--> Expensive 