Bomb can be used for Destruction. Bomb is related to Terrorist. Terrorist is a type of Radical. Radical is a synonym of Fundamental. 
Automatic is related to Rifle. Rifle is related to Dangerous. Dangerous is related to Fight. Fight is the opposite of Peace. 
Destruction <--UsedFor-- Bomb <--RelatedTo--> Terrorist --IsA--> Radical <--Synonym--> Fundamental 
Automatic <--RelatedTo--> Rifle <--RelatedTo--> Dangerous <--RelatedTo--> Fight <--Antonym--> Peace 