Iyo inokatyamadza uye inonakidza nyika yepfungwa, iyo yakadzika meanders yepfungwa uye hunhu hunokanganisa hukama nevamwe nevamwe nzanga.
Isu tinofananidza uye kuongorora edu nezviito zvevamwe kuburikidza nezvinyorwa zvakagadzirwa nenyanzvi dzeindasitiri uye neavo vakasangana nezviitiko uye zviitiko zvega.