Karolo ea 1:Seporo se thellang le boloko bo thellang li kopana ka libolo, kahoo ho sisinyeha ho nyane, ho loketseng lisebelisoa tse nang le litlhoko tse nepahetseng.
Karolo ea 2:Ka lebaka la ho kopana ha ntlha-to-surface, khanyetso ea likhohlano e nyane haholo, 'me metsamao e metle e ka etsoa ho fihlela boemo bo holimo ba lisebelisoa tsa taolo, joalo-joalo.