<prompt> Ngenkathi kushayisana, ithangi lanamathela esikebheni.  <response>: Yiqiniso, inguqulo eyinkimbinkimbi yalesi sigwebo ithi: Lapho kushayisana, ithangi lanamathela esikebheni; umlawuli wethangi wayala ukuba izinjini zisebenze ngamandla amakhulu futhi wakwazi ukuhlukanisa imikhumbi, kodwa engahlosile wenza ukuchitheka kukawoyela kwaba kubi nakakhulu. 