urea[6], auro[6], euro[6], rusa[6], sura[6], usra[6], ruse[6], sure[6], suro[6], oere[4], sera[4], eser[4], arso[4], osra[4], raso[4], rosa[4], eros[4],
aur[5], oru[5], esu[5], sou[5], rus[5], sur[5], era[3], rea[3], aro[3], ora[3], ero[3], osa[3], ars[3], ras[3], sra[3], ser[3], ros[3],
au[4], su[4], ee[2], eo[2], ar[2], er[2], re[2], or[2], ro[2], as[2], es[2], se[2], os[2],
