boye[7], bery[7], erby[7], bory[7], roby[7], rybo[7], rebe[6], bero[6], ober[6], oere[4],
boy[6], oby[6], bry[6], ryb[6], bee[5], ber[5], erb[5], reb[5], bor[5], rob[5], brr[5], ery[4], ero[3],
by[5], be[4], bo[4], ee[2], eo[2], er[2], re[2], or[2], ro[2],
