I.
noun
ADJECTIVE
▪ 4 by 400 , etc.
▪ freestyle , medley , sprint
VERB + RELAY
▪ run , run in , swim
▪
She ran in the 4 by 400 ~.
▪ win
RELAY + NOUN
▪ race
▪ squad , team
▪ medallist/medalist
II.
verb
Relay is used with these nouns as the object: ↑ information , ↑ message , ↑ news , ↑ signal