piet[6], pite[6], pert[6], trep[6], trip[6], peri[5], werp[5], wite[5], rwie[4],
pet[5], pit[5], pie[4], per[4], rep[4], ret[4], ter[4], itr[4], tir[4], tri[4], piw[4], twe[4], wet[4], wte[4], rei[3], wie[3], rew[3], wre[3], wir[3],
pe[3], pi[3], et[3], te[3], er[2], re[2], ew[2], we[2], iw[2],