chaco[9], coach[9], cocha[9], odach[9],
dach[8], acha[7], caca[6], coda[6],
ach[6], cha[6], hoc[6], och[6], aha[5], cod[5], doc[5], hao[5], dao[4], oda[4],
ha[4], ho[4], oh[4], ad[3], da[3], co[3], do[3], od[3], aa[2],
