tara[4], aura[4], raut[4], trau[4], urat[4],
aar[3], ara[3], air[3], rai[3], tai[3], art[3], rat[3], aua[3], rau[3], tau[3],
aa[2], ai[2], ar[2], ti[2], au[2], ui[2], ur[2], tu[2],
