arui[6], rusa[6], sura[6], usra[6], rusi[6], rias[4], sari[4], siar[4],
aur[5], rui[5], siu[5], rus[5], sur[5], air[3], rai[3], ais[3], sia[3], ars[3], ras[3], sra[3], sir[3],
au[4], su[4], ar[2], as[2], si[2],
