4 × 200 metres relay
The 4 × 200 metres relay is an athletics track event in which teams comprise four runners who each complete 200 metres or half a lap on a standard 400 metre track . 
<triplet> 4 × 200 metres relay <subj> athletics <obj> sport <triplet> athletics <subj> track event <obj> has part <triplet> track event <subj> athletics <obj> subclass of