echu[9], ucho[9], echo[7], heco[7], choi[7], ucie[7],
chu[8], uch[8], che[6], ech[6], hec[6], chi[6], ich[6], hoc[6], och[6], ecu[6], hoi[5], cie[4],
hu[6], eh[4], he[4], hi[4], ho[4], oh[4], ce[3], ci[3], co[3], ii[2], eo[2],
