tond[6], sond[5], sodo[5], noto[5], tono[5], stoo[5],
dno[4], don[4], odo[4], not[4], ton[4], oto[4], sto[4], ono[3], nos[3], son[3], oso[3],
do[3], od[3], ot[3], to[3], ts[3], no[2], on[2], os[2],
