aars[4], aras[4], rass[4], aura[4], raus[4], saus[4], russ[4],
aar[3], ara[3], aas[3], ars[3], ras[3], ass[3], aua[3], rau[3], aus[3], sau[3], rus[3], sur[3], urs[3],
aa[2], ar[2], as[2], au[2], ur[2],
