acha[7], echa[7], heca[7], hasa[6],
ach[6], cha[6], che[6], ech[6], hec[6], aha[5], has[5], hes[5], ces[4], asa[3],
ha[4], eh[4], he[4], ce[3], aa[2], as[2], es[2], se[2],
