Normal is the opposite of Extraordinary. Extraordinary is the opposite of Regular. Regular is similar to Switch. Transition is a type of Switch. 
Horse is related to Adult. Elder is a type of Adult. Elder is related to Chief. 
Normal <--Antonym--> Extraordinary <--Antonym--> Regular <--SimilarTo--> Switch <--IsA-- Transition 
Horse <--RelatedTo--> Adult <--IsA-- Elder <--RelatedTo--> Chief 