echo[7], heco[7], choi[7], tice[6], ocet[6], ciot[6], cito[6], tico[6],
che[6], ech[6], hec[6], chi[6], ich[6], hoc[6], och[6], het[6], hit[6], hot[6], hoi[5], oho[5], cie[4], eto[4], toi[4], oto[4],
eh[4], he[4], hi[4], ho[4], oh[4], ce[3], ci[3], co[3], et[3], te[3], ot[3], to[3], eo[2],
