bero[6], ober[6], webo[6], brew[6], ower[4], rewo[4],
ber[5], erb[5], reb[5], bor[5], rob[5], brr[5], web[5], ero[3], ewo[3], owe[3], rew[3], wre[3], rwo[3], wrr[3],
be[4], bo[4], eo[2], er[2], re[2], or[2], ro[2], ew[2], we[2],
