peri[5], werp[5], iwie[4], wiei[4], rwie[4],
pie[4], per[4], rep[4], piw[4], rei[3], wie[3], wii[3], rew[3], wre[3], wir[3],
pe[3], pi[3], ii[2], er[2], re[2], ew[2], we[2], iw[2],
