bici[7], ibis[6], nici[5], cisi[5], insi[4], sini[4],
bib[7], bin[5], ibn[5], bis[5], cni[4], nic[4], cis[4], sic[4], inr[3], sir[3],
bi[4], ci[3], ii[2], in[2], ni[2], si[2],
