sentences:  Harrison steadily gained on the last half of the turn pulling even by the straightaway, then cleanly separated, putting USA in the lead.Haughton followed Harrison around Baulch running down lane 2 trying to catch Harrison.USA and GBR exchanged cleanly on the inside, but as Haughton handed off to Roxbert Martin, they crossed legs with Martin coming out doing a full somersault, Jamaica losing a couple of steps on Derek Mills leading for the Americans, with Mark Richardson in hot pursuit.