One is related to Regret. Regret is the opposite of Pride. 
you are likely to find Machine in/at/on Office. Helicopter is a type of Machine. Helicopter is related to Pilot. Pilot is related to Drive. 
One <--RelatedTo--> Regret <--Antonym--> Pride 
Office <--AtLocation-- Machine <--IsA-- Helicopter <--RelatedTo--> Pilot <--RelatedTo--> Drive 