bety[8], boty[8], byto[8], toby[8], beto[7], tego[7], boye[7],
beg[7], byt[7], bet[6], bot[6], tog[6], boy[6], oby[6], ego[5], ety[5], eto[4],
by[5], be[4], bo[4], go[4], ty[4], et[3], te[3], ot[3], to[3], eo[2],
