chno[7], chon[7], hond[7], tond[6], knot[6], kont[6],
hoc[6], och[6], hot[6], cod[5], doc[5], koc[5], dok[5], kod[5], kot[5], kto[5], tok[5], noc[4], dno[4], don[4], nok[4], not[4], ton[4],
ho[4], oh[4], co[3], do[3], od[3], ko[3], ok[3], ot[3], to[3], no[2], on[2],
