<prompt> Gadzira shanduro yakaoma zvikuru yemutsara uyu US S wigwags yakashandiswawo neCPR pamigwagwa yayo yeCanada.  <response>: Chokwadika, shanduro yakaoma zvikuru yemutsara wacho ndeiyi USS wigwags yakashandiswawo neCPR pamitsetse yayo yeCanada; yekupedzisira inoshandiswa paCPR inofungidzirwa kuti yakabviswa muChatham, Ontario pakati pemakore e1980. 