okay[6], kozy[6], akia[5], akio[5], kazi[5], koza[5], okaz[5], kozi[5], oazy[5], oaza[4],
kia[4], oka[4], kio[4], koi[4], ozy[4], oaz[3],
ka[3], ki[3], ko[3], ok[3], aa[2], za[2], oz[2],
