aare[4], aase[4], aars[4], aras[4], aser[4], rase[4], sera[4],
aar[3], ara[3], are[3], aas[3], ase[3], ars[3], ras[3], ers[3], res[3],
aa[2], ar[2], er[2], re[2], as[2], es[2],
