sersu[7], esera[5], sersa[5],
urea[6], rusa[6], sura[6], usra[6], ruse[6], sure[6], susa[6], sera[4], eser[4], eses[4], sers[4],
aur[5], esu[5], rus[5], sur[5], sus[5], era[3], rea[3], ars[3], ras[3], sra[3], ser[3], sas[3],
au[4], su[4], ee[2], ar[2], er[2], re[2], as[2], es[2], se[2],
