Contact is a type of Representative. Representative is a synonym of Example. Apology is a type of Example. Apology is derived from Apologize. 
Baseball is related to Home. Home is related to Address. 
Contact --IsA--> Representative <--Synonym--> Example <--IsA-- Apology --DerivedFrom--> Apologize 
Baseball <--RelatedTo--> Home <--RelatedTo--> Address 