Swing is related to Dance. Extension is a type of Dance. Extension is related to Hand. Hand is related to Wash. 
Order is the opposite of Disorder. Mess is a type of Disorder. 
Swing <--RelatedTo--> Dance <--IsA-- Extension <--RelatedTo--> Hand <--RelatedTo--> Wash 
Order <--Antonym--> Disorder <--IsA-- Mess 