coka[6], koca[6], kano[5], kaon[5], koan[5], kona[5], nako[5], noka[5], okna[5],
kac[5], koc[5], cna[4], kan[4], oka[4], noc[4], nok[4], ano[3], ona[3],
ka[3], co[3], ko[3], ok[3], na[2], no[2], on[2],
