aria[4], arii[4], arsa[4], rasa[4], rias[4], sari[4], siar[4],
ara[3], air[3], rai[3], asa[3], ais[3], sia[3], ars[3], ras[3], sra[3], sir[3],
aa[2], ii[2], ar[2], as[2], si[2],
