<prompt> Yenza inguqulo eyinkimbinkimbi yalesi sigwebo Lapho zitholakala, iNyakatho Korea yathi lezi zimhubhe zazisetshenziselwa ukumba amalahle; kodwa, akukho malahle atholakele kulezi zimhubhe, ezimbelwe egranite.  <response>: Yiqiniso, inguqulo eyinkimbinkimbi yomusho ithi Lapho kutholakala, iNorth Korea yathi le migudu yayisetshenziselwa ukumba amalahle; kodwa, akukho malahle atholakele kule migudu, eyimbelwe nge-granite, kodwa ezinye izindonga zemigudu ziye zapendwa zaba mnyama ukuze zibonakale njenge-anthracite. 