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