Doctor is related to Profession. Music is a type of Profession. Person wants (to) Music. 
Ease is a synonym of Rest. Rest is a synonym of Pillow. Pillow is related to Feather. Feather can be used for Flight. 
Doctor <--RelatedTo--> Profession <--IsA-- Music <--Desires-- Person 
Ease <--Synonym--> Rest <--Synonym--> Pillow <--RelatedTo--> Feather --UsedFor--> Flight 