che[6], ech[6], hec[6], hel[6], het[6], cel[5], cle[5], lec[5], hen[5], hes[5], tle[5], cen[4], cne[4], len[4], ces[4], net[4], ten[4], set[4], sen[3],
eh[4], he[4], ce[3], el[3], et[3], te[3], ts[3], en[2], es[2], se[2],