pera[5], repa[5], pars[5], pras[5], pers[5], sera[4],
par[4], rap[4], per[4], rep[4], pas[4], psa[4], sap[4], spa[4], sep[4], era[3], rea[3], ars[3], ras[3], sra[3], ser[3],
pa[3], pe[3], ar[2], er[2], re[2], as[2], es[2], se[2],
