biec[7], niby[7], nieb[6], ceny[6], nicy[6], ceni[5], enci[5], ince[5], nice[5],
ben[5], bin[5], ibn[5], cyi[5], cny[5], cyn[5], cie[4], cen[4], cne[4], cni[4], nic[4], yin[4], nie[3],
by[5], be[4], bi[4], ce[3], ci[3], ny[3], en[2], in[2], ni[2],
