birg[7], birr[6], bris[6], biss[6], girr[5], giss[5], sirr[4], diss[4], riss[4], sirs[4],
gib[6], brr[5], bis[5], gis[4], dir[3], irr[3], dis[3], sir[3], iss[3],
bi[4], si[2],
