koko[6], knot[6], kont[6], koto[6], otok[6], okno[5], noto[5], tono[5], nono[4],
kok[5], kot[5], kto[5], tok[5], nok[4], oko[4], not[4], ton[4], oto[4], non[3], ono[3],
ko[3], ok[3], ot[3], to[3], no[2], on[2],
