beko[7],
bek[6], bok[6], bee[5], ehe[5], ben[5], hen[5], bon[5], eko[4], nok[4], eon[3], one[3],
be[4], eh[4], he[4], bo[4], ho[4], oh[4], ko[3], ok[3], ee[2], en[2], eo[2], no[2], on[2],
