Train is a type of Learn. Learn is related to Duty. Job is a type of Duty. Job is related to Employ. 
Book is a type of Device. Device is related to Print. Print is the opposite of Online. 
Train --IsA--> Learn <--RelatedTo--> Duty <--IsA-- Job <--RelatedTo--> Employ 
Book --IsA--> Device <--RelatedTo--> Print <--Antonym--> Online 