arie[4], rare[4], irre[4], raue[4],
eia[3], are[3], air[3], rai[3], ire[3], rar[3], irr[3], aue[3], rau[3], reu[3], ure[3],
ai[2], ei[2], ar[2], er[2], re[2], au[2], ui[2], ur[2],
