Reply is related to Statement. Estimate is a type of Statement. Estimate is a synonym of Guess. Guess is related to Answer. 
Hockey is related to Violent. Violent is related to War. War is related to Political. Political is related to Democracy. 
Reply <--RelatedTo--> Statement <--IsA-- Estimate <--Synonym--> Guess <--RelatedTo--> Answer 
Hockey <--RelatedTo--> Violent <--RelatedTo--> War <--RelatedTo--> Political <--RelatedTo--> Democracy 