Shadow is a type of Presence. Presence is related to Exist. Consist is a type of Exist. 
Nonprofit is the opposite of Business. Business is a type of Institution. University is a type of Institution. University can be used for Learn. 
Shadow --IsA--> Presence <--RelatedTo--> Exist <--IsA-- Consist 
Nonprofit <--Antonym--> Business --IsA--> Institution <--IsA-- University --UsedFor--> Learn 