Split is a synonym of Depart. Depart is a synonym of Die. Die is a type of Disappear. 
Learning requires Patience. Patience is related to Tolerance. Tolerance is a type of Attitude. Defensive is a type of Attitude. 
Split <--Synonym--> Depart <--Synonym--> Die --IsA--> Disappear 
Learning --HasPrerequisite--> Patience <--RelatedTo--> Tolerance --IsA--> Attitude <--IsA-- Defensive 