bzyk[8], kobo[7], obok[7], kobz[7], koko[6], kozy[6], kozo[5],
byk[7], bok[6], boy[6], oby[6], bzy[6], kok[5], oko[4], ozy[4], zoo[3],
by[5], bo[4], ko[3], ok[3], oz[2],
