rapie[6], repie[6], raper[6], reper[6],
pera[5], repa[5], peri[5], parr[5], arie[4],
pai[4], pia[4], pie[4], par[4], rap[4], per[4], rep[4], prr[4], era[3], rea[3], air[3], rai[3], rei[3],
pa[3], pe[3], pi[3], ee[2], ar[2], er[2], re[2],
