Class is related to Scholar. Scholar requires Study. 
Ancient is related to Myth. Myth is related to Greek. Greek is related to Air. you are likely to find Jet in/at/on Air. 
Class <--RelatedTo--> Scholar --HasPrerequisite--> Study 
Ancient <--RelatedTo--> Myth <--RelatedTo--> Greek <--RelatedTo--> Air <--AtLocation-- Jet 