Head is related to Hand. Hand is related to Limb. Thigh is a type of Limb. Thigh is related to Neck. 
Quit is the opposite of Apply. Apply is related to Fill. 
Head <--RelatedTo--> Hand <--RelatedTo--> Limb <--IsA-- Thigh <--RelatedTo--> Neck 
Quit <--Antonym--> Apply <--RelatedTo--> Fill 