Kid is related to Junior. Junior is a type of Person. Radical is a type of Person. Radical is a synonym of Fundamental. 
Contrast is a type of Differ. Differ is a synonym of Disagree. one thing you do when you Disagree is Debate. 
Kid <--RelatedTo--> Junior --IsA--> Person <--IsA-- Radical <--Synonym--> Fundamental 
Contrast --IsA--> Differ <--Synonym--> Disagree --HasSubevent--> Debate 