Matter is a type of Book. Traveler is a type of Book. Passenger is a type of Traveler. 
Airline is a type of Business. Business is the opposite of Nonprofit. Nonprofit is related to Organization. Pool is a type of Organization. 
Matter --IsA--> Book <--IsA-- Traveler <--IsA-- Passenger 
Airline --IsA--> Business <--Antonym--> Nonprofit <--RelatedTo--> Organization <--IsA-- Pool 