biec[7], becz[7], bicz[7], brei[6], brie[6], bzie[6], brze[6], zebr[6], zbir[6], rzec[5],
ber[5], erb[5], reb[5], bez[5], biz[5], izb[5], cie[4], cer[4], cez[4], cze[4], czi[4], rei[3], zer[3],
be[4], bi[4], ce[3], ci[3], er[2], re[2], ez[2], ze[2],
