Column is related to Editor. Editor is a type of Worker. Contractor is a type of Worker. 
Butter is a type of Fat. Knife can be used for Butter. Knife is related to Sword. Sword is related to Warrior. 
Column <--RelatedTo--> Editor --IsA--> Worker <--IsA-- Contractor 
Fat <--IsA-- Butter <--UsedFor-- Knife <--RelatedTo--> Sword <--RelatedTo--> Warrior 