beku[9], ubek[9], boku[9], keku[8], koku[8], beko[7], kobo[7], obok[7], koko[6],
buk[8], kub[8], kuk[7], obu[7], bek[6], bok[6], oku[6], bee[5], kek[5], kok[5], eko[4], oko[4],
bu[6], ku[5], be[4], bo[4], ko[3], ok[3], ee[2], eo[2],
