che[6], ech[6], hec[6], hep[6], cek[5], hen[5], cep[5], cen[4], cne[4], nep[4], pen[4], cez[4], cze[4], zek[4], zen[3],
eh[4], he[4], ce[3], pe[3], en[2], ez[2], ze[2],