birg[7], birr[6], bris[6], biss[6], girr[5], giss[5], hiss[5], sirr[4], riss[4], sirs[4],
gib[6], brr[5], bis[5], ihr[4], gis[4], his[4], irr[3], sir[3], iss[3],
bi[4], hi[3], si[2],
