cache[9], cecha[9], chaco[9], coach[9], cocha[9], cecho[9],
cech[8], chce[8], echa[7], heca[7], eche[7], hece[7], echo[7], heco[7],
ach[6], cha[6], che[6], ech[6], hec[6], hoc[6], och[6], ehe[5], hao[5],
ha[4], eh[4], he[4], ho[4], oh[4], ce[3], co[3], ee[2], eo[2],
