Passenger is related to Helicopter. Helicopter can be used for Fly. Fly is related to Duck. 
Measurement is related to Degree. Degree is related to Graduate. Graduate is the opposite of Undergraduate. 
Passenger <--RelatedTo--> Helicopter --UsedFor--> Fly <--RelatedTo--> Duck 
Measurement <--RelatedTo--> Degree <--RelatedTo--> Graduate <--Antonym--> Undergraduate 