kobo[7], obok[7], bono[6], obon[6], okno[5], woko[5], nowo[4],
bok[6], bon[5], nok[4], oko[4], kwo[4], wok[4], ono[3], won[3], owo[3],
bo[4], ko[3], ok[3], no[2], on[2],
