aper[7], apre[7], pair[7], pari[7], peri[7], pier[7], prei[7], arie[4],
par[6], rap[6], per[6], rep[6], eia[3], are[3], air[3], rai[3], ire[3],
pi[5], ai[2], ei[2], ar[2], er[2], re[2],
