kobo[7], obok[7], kobz[7], bono[6], obon[6], kopn[6], kopo[6], okop[6], opok[6], okno[5], opon[5], pono[5], kozo[5], pozo[5], ozon[4], zono[4],
bok[6], bon[5], kop[5], nok[4], oko[4], ono[3], zon[3], zoo[3],
bo[4], ko[3], ok[3], op[3], po[3], no[2], on[2], oz[2],
