Spirit is the opposite of Clay. Clay is the opposite of Soul. Soul is related to Mate. Mate is related to Captain. 
While is related to Repeat. Repeat is related to Ongoing. 
Spirit <--Antonym--> Clay <--Antonym--> Soul <--RelatedTo--> Mate <--RelatedTo--> Captain 
While <--RelatedTo--> Repeat <--RelatedTo--> Ongoing 