Sovereignty is a type of Authority. Sovereignty is a synonym of Autonomy. Autonomy is a type of Independence. 
Plane is related to Flying. Flying is related to Arrow. Arrow is a type of Weapon. Knife is a type of Weapon. 
Authority <--IsA-- Sovereignty <--Synonym--> Autonomy --IsA--> Independence 
Plane <--RelatedTo--> Flying <--RelatedTo--> Arrow --IsA--> Weapon <--IsA-- Knife 