bib[7], ber[5], erb[5], reb[5], bis[5], web[5], rei[3], eis[3], sie[3], ser[3], sir[3], wie[3], rew[3], wre[3], wir[3], swe[3], siw[3], wis[3], wsi[3],
be[4], bi[4], er[2], re[2], es[2], se[2], si[2], ew[2], we[2], iw[2],
