Flesh is a synonym of Fat. Fat is the opposite of Health. Health is related to Doctor. Doctor is related to Heal. 
Jet is a type of Airplane. Airplane can be used for Travel. 
Flesh <--Synonym--> Fat <--Antonym--> Health <--RelatedTo--> Doctor <--RelatedTo--> Heal 
Jet --IsA--> Airplane --UsedFor--> Travel 