<prompt> Feleletša polelo ye e latelago: O ile a emela United States kua  <response>: 2017 World Junior Championships kua Indianapolis, o thopile sefoka sa silifera ka lebelo la go kitima la 4x200-meter freestyle relay. Callan gape o ile a ba wa bone phadišanong ya makgaolakgang ya lebelo la motho ka noši la dimithara tše 200. 