roi[4], sou[4], uso[4], air[3], rai[3], ais[3], ars[3], ras[3], sir[3], rau[3], aus[3], sau[3], rus[3], sur[3], urs[3],
os[3], so[3], ai[2], ar[2], as[2], si[2], au[2], ui[2], ur[2],
