Le divayisi inikeza isixhumi esibonakalayo esingu-1-4* E1 , ucingo olujwayelekile 2 njengocingo lwe-oda lobunjiniyela (ongakukhetha).Ivumelana nezimo kakhulu.Inomsebenzi we-alamu.Umsebenzi unokwethenjelwa, uzinzile, futhi ukusetshenziswa kwamandla aphansi, ukuhlanganiswa okuphezulu, usayizi omncane.